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2960 vulnerabilities
CVE-2026-110249 (GCVE-0-2026-110249)
Vulnerability from cvelistv5 – Published: 2026-10-13 18:08 – Updated: 2026-10-13 18:16
VLAI
EPSS
VEX
Title
Denial-of-service in the Exchange email component
Summary
A malicious, compromised, or MITM-controlled Exchange server can return a single well-formed SOAP response containing an element with enough attributes to keep Thunderbird's main thread CPU-bound for seconds to hours. This vulnerability was fixed in Thunderbird 158 and Thunderbird 153.5.
Severity
No CVSS data available.
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
{
"containers": {
"cna": {
"affected": [
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "SuyZ"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "A malicious, compromised, or MITM-controlled Exchange server can return a single well-formed SOAP response containing an element with enough attributes to keep Thunderbird\u0027s main thread CPU-bound for seconds to hours. This vulnerability was fixed in Thunderbird 158 and Thunderbird 153.5."
}
],
"value": "A malicious, compromised, or MITM-controlled Exchange server can return a single well-formed SOAP response containing an element with enough attributes to keep Thunderbird\u0027s main thread CPU-bound for seconds to hours. This vulnerability was fixed in Thunderbird 158 and Thunderbird 153.5."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T18:16:44.469Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2077826"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-109/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-110/"
}
],
"title": "Denial-of-service in the Exchange email component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-110249",
"datePublished": "2026-10-13T18:08:38.179Z",
"dateReserved": "2026-10-13T18:08:37.893Z",
"dateUpdated": "2026-10-13T18:16:44.469Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-110247 (GCVE-0-2026-110247)
Vulnerability from cvelistv5 – Published: 2026-10-13 18:08 – Updated: 2026-10-13 18:10
VLAI
EPSS
VEX
Title
Integer overflow in libmime buffer growth could lead to heap corruption
Summary
Several buffer-growth sites in libmime performed size arithmetic in 32-bit types without overflow checks. On a sufficiently large message the growth guard could fail open, or the buffer could be reallocated smaller than required, and a subsequent memcpy would then write attacker-controlled data across adjacent heap allocations. This vulnerability was fixed in Thunderbird 158.
Severity
No CVSS data available.
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Thunderbird |
Unaffected:
158 , ≤ *
(rpm)
|
{
"containers": {
"cna": {
"affected": [
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Ahmed Albalawi"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Several buffer-growth sites in libmime performed size arithmetic in 32-bit types without overflow checks. On a sufficiently large message the growth guard could fail open, or the buffer could be reallocated smaller than required, and a subsequent memcpy would then write attacker-controlled data across adjacent heap allocations. This vulnerability was fixed in Thunderbird 158."
}
],
"value": "Several buffer-growth sites in libmime performed size arithmetic in 32-bit types without overflow checks. On a sufficiently large message the growth guard could fail open, or the buffer could be reallocated smaller than required, and a subsequent memcpy would then write attacker-controlled data across adjacent heap allocations. This vulnerability was fixed in Thunderbird 158."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T18:10:20.644Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2071621"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-109/"
}
],
"title": "Integer overflow in libmime buffer growth could lead to heap corruption"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-110247",
"datePublished": "2026-10-13T18:08:37.608Z",
"dateReserved": "2026-10-13T18:08:37.322Z",
"dateUpdated": "2026-10-13T18:10:20.644Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-109783 (GCVE-0-2026-109783)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Mitigation bypass in the File Handling component
Summary
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ *
(rpm)
|
{
"containers": {
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Mozilla"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5."
}
],
"value": "Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T18:17:24.062Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2075533"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-108/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-110/"
}
],
"title": "Mitigation bypass in the File Handling component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-109783",
"datePublished": "2026-10-13T12:29:36.256Z",
"dateReserved": "2026-10-13T00:49:22.774Z",
"dateUpdated": "2026-10-13T18:17:24.062Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-109782 (GCVE-0-2026-109782)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Mitigation bypass in the File Handling component
Summary
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ *
(rpm)
|
{
"containers": {
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Abdulrahman Alzahrani"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5."
}
],
"value": "Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T18:17:09.475Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2067465"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-108/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-110/"
}
],
"title": "Mitigation bypass in the File Handling component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
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"datePublished": "2026-10-13T12:29:36.025Z",
"dateReserved": "2026-10-13T00:49:20.493Z",
"dateUpdated": "2026-10-13T18:17:09.475Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-109781 (GCVE-0-2026-109781)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Denial-of-service in the Printing: Output component
Summary
Denial-of-service in the Printing: Output component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 14:21 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
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}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-13T14:21:45.441870Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
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"description": "CWE-400 Uncontrolled Resource Consumption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
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"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
},
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"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Nguyen Thanh Nguyen"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
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}
],
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}
],
"providerMetadata": {
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},
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"url": "https://www.mozilla.org/security/advisories/mfsa2026-106/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-108/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-109/"
},
{
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"title": "Denial-of-service in the Printing: Output component"
}
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},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-109780 (GCVE-0-2026-109780)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:08
VLAI
EPSS
VEX
Title
Mitigation bypass in the DOM: Core & HTML component
Summary
Mitigation bypass in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
158 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
158 , ≤ *
(rpm)
|
{
"containers": {
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Shannon Booth"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
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}
],
"value": "Mitigation bypass in the DOM: Core \u0026 HTML component. This vulnerability was fixed in Firefox 158 and Thunderbird 158."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T18:08:36.500Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
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"references": [
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},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-106/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-109/"
}
],
"title": "Mitigation bypass in the DOM: Core \u0026 HTML component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-109780",
"datePublished": "2026-10-13T12:29:35.608Z",
"dateReserved": "2026-10-13T00:49:15.410Z",
"dateUpdated": "2026-10-13T18:08:36.500Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-109779 (GCVE-0-2026-109779)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:08
VLAI
EPSS
VEX
Title
Race condition in the Networking: DNS component
Summary
Race condition in the Networking: DNS component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
Severity
4.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 14:53 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
158 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
158 , ≤ *
(rpm)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
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"id": "CVE-2026-109779",
"options": [
{
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},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-13T14:53:48.294735Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-362",
"description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T14:53:51.689Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Mozilla"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Race condition in the Networking: DNS component. This vulnerability was fixed in Firefox 158 and Thunderbird 158."
}
],
"value": "Race condition in the Networking: DNS component. This vulnerability was fixed in Firefox 158 and Thunderbird 158."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T18:08:35.924Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2072048"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-106/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-109/"
}
],
"title": "Race condition in the Networking: DNS component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
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CVE-2026-109778 (GCVE-0-2026-109778)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-14 03:59
VLAI
EPSS
VEX
Title
Privilege escalation in the WebExtensions component
Summary
Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 00:00 UTC
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
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CVE-2026-109777 (GCVE-0-2026-109777)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Information disclosure in the Storage: IndexedDB component
Summary
Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 14:56 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
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CVE-2026-109776 (GCVE-0-2026-109776)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-15 19:58
VLAI
EPSS
VEX
Title
Race condition in the XPCOM component
Summary
Race condition in the XPCOM component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
4.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 19:58 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
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CVE-2026-109775 (GCVE-0-2026-109775)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Denial-of-service in the WebRTC component
Summary
Denial-of-service in the WebRTC component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 14:07 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
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CVE-2026-109774 (GCVE-0-2026-109774)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:08
VLAI
EPSS
VEX
Title
Invalid pointer, undefined behavior in the DOM: Notifications component
Summary
Invalid pointer, undefined behavior in the DOM: Notifications component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
158 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
158 , ≤ *
(rpm)
|
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CVE-2026-109773 (GCVE-0-2026-109773)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:08
VLAI
EPSS
VEX
Title
Denial-of-service in the Sync component
Summary
Denial-of-service in the Sync component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 14:54 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
158 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
158 , ≤ *
(rpm)
|
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CVE-2026-109772 (GCVE-0-2026-109772)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:08
VLAI
EPSS
VEX
Title
Same-origin policy bypass in the DevTools component
Summary
Same-origin policy bypass in the DevTools component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
158 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
158 , ≤ *
(rpm)
|
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CVE-2026-109771 (GCVE-0-2026-109771)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:08
VLAI
EPSS
VEX
Title
Information disclosure in the WebRTC: Networking component
Summary
Information disclosure in the WebRTC: Networking component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 14:57 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
158 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
158 , ≤ *
(rpm)
|
{
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"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
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CVE-2026-109770 (GCVE-0-2026-109770)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Spoofing issue in the DOM: Web Serial component
Summary
Spoofing issue in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
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CVE-2026-109769 (GCVE-0-2026-109769)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:08
VLAI
EPSS
VEX
Title
Information disclosure in the Networking: Cache component
Summary
Information disclosure in the Networking: Cache component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 14:57 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
158 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
158 , ≤ *
(rpm)
|
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CVE-2026-109768 (GCVE-0-2026-109768)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:08
VLAI
EPSS
VEX
Title
Denial-of-service in the Site Reports component
Summary
Denial-of-service in the Site Reports component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 14:55 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
158 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
158 , ≤ *
(rpm)
|
{
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
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"vendor": "Mozilla",
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}
],
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"url": "https://www.mozilla.org/security/advisories/mfsa2026-106/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-109/"
}
],
"title": "Denial-of-service in the Site Reports component"
}
},
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"datePublished": "2026-10-13T12:29:33.064Z",
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"dateUpdated": "2026-10-13T18:08:30.140Z",
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CVE-2026-109767 (GCVE-0-2026-109767)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Information disclosure in the Networking component
Summary
Information disclosure in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 14:57 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
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},
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"vendor": "Mozilla",
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"versionType": "rpm"
},
{
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{
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"vendor": "Mozilla",
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{
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],
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],
"providerMetadata": {
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},
{
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},
{
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{
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CVE-2026-109766 (GCVE-0-2026-109766)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Mitigation bypass in the Enterprise Policies component
Summary
Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
{
"containers": {
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Souma Ohsawa"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5."
}
],
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],
"providerMetadata": {
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{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2074406"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-106/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-108/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-109/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-110/"
}
],
"title": "Mitigation bypass in the Enterprise Policies component"
}
},
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CVE-2026-109765 (GCVE-0-2026-109765)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Race condition, use-after-free in the Graphics: Text component
Summary
Race condition, use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
4.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 14:08 UTC
CWE
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
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"timestamp": "2026-10-13T14:08:55.001726Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
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{
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{
"cweId": "CWE-362",
"description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
"lang": "en",
"type": "CWE"
},
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T14:08:58.343Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
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{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Shu Takahashi of Velcore Consulting Inc."
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Race condition, use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5."
}
],
"value": "Race condition, use-after-free in the Graphics: Text component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T18:17:20.940Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
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"references": [
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"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2073396"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-106/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-108/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-109/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-110/"
}
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CVE-2026-109764 (GCVE-0-2026-109764)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Mitigation bypass in the Enterprise Policies component
Summary
Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
{
"containers": {
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "HyeonSeung Kim"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5."
}
],
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}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T18:17:19.874Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
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"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2073382"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-106/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-108/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-109/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-110/"
}
],
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},
"cveMetadata": {
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"dateUpdated": "2026-10-13T18:17:19.874Z",
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CVE-2026-109763 (GCVE-0-2026-109763)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Mitigation bypass in the File Handling component
Summary
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
{
"containers": {
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Riku Bamba"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5."
}
],
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}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T18:17:18.830Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
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"references": [
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"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2072501"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-106/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-108/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-109/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-110/"
}
],
"title": "Mitigation bypass in the File Handling component"
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},
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CVE-2026-109762 (GCVE-0-2026-109762)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Incorrect boundary conditions in the SVG component
Summary
Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
{
"containers": {
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.5",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "158",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Mozilla"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5."
}
],
"value": "Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5."
}
],
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CVE-2026-109761 (GCVE-0-2026-109761)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:08
VLAI
EPSS
VEX
Title
Use-after-free in the JavaScript: WebAssembly component
Summary
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 14:13 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
158 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
158 , ≤ *
(rpm)
|
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CVE-2026-109760 (GCVE-0-2026-109760)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Mitigation bypass in the Networking: HTTP component
Summary
Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
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CVE-2026-109759 (GCVE-0-2026-109759)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-13 18:17
VLAI
EPSS
VEX
Title
Site isolation issue in the Networking component
Summary
Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
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CVE-2026-109757 (GCVE-0-2026-109757)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-15 19:56
VLAI
EPSS
VEX
Title
Sandbox escape due to race condition in the Networking component
Summary
Sandbox escape due to race condition in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
8.3 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 19:56 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
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CVE-2026-109756 (GCVE-0-2026-109756)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-14 03:59
VLAI
EPSS
VEX
Title
Privilege escalation in the DOM: Navigation component
Summary
Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 00:00 UTC
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
153.5 , ≤ 153.*
(rpm)
Unaffected: 158 , ≤ * (rpm) |
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CVE-2026-109755 (GCVE-0-2026-109755)
Vulnerability from cvelistv5 – Published: 2026-10-13 12:29 – Updated: 2026-10-15 19:55
VLAI
EPSS
VEX
Title
Sandbox escape in the DOM: Content Processes component
Summary
Sandbox escape in the DOM: Content Processes component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 19:55 UTC
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
158 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
158 , ≤ *
(rpm)
|
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