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CERTFR-2026-AVI-0529
Vulnerability from certfr_avis - Published: 2026-05-04 - Updated: 2026-05-04
De multiples vulnérabilités ont été découvertes dans Mozilla Thunderbird. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une atteinte à la confidentialité des données et un contournement de la politique de sécurité.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Mozilla | Thunderbird ESR | Thunderbird ESR versions antérieures à 140.10.1 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 150.0.1 |
References
| Title | Publication Time | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Thunderbird ESR versions ant\u00e9rieures \u00e0 140.10.1",
"product": {
"name": "Thunderbird ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 150.0.1",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-7324",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-7324"
},
{
"name": "CVE-2026-7323",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-7323"
},
{
"name": "CVE-2026-7322",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-7322"
},
{
"name": "CVE-2026-7320",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-7320"
},
{
"name": "CVE-2026-7321",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-7321"
}
],
"initial_release_date": "2026-05-04T00:00:00",
"last_revision_date": "2026-05-04T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0529",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-05-04T00:00:00.000000"
}
],
"risks": [
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Mozilla Thunderbird. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Mozilla Thunderbird",
"vendor_advisories": [
{
"published_at": "2026-04-30",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-39",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-39/"
},
{
"published_at": "2026-04-30",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-38",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-38/"
}
]
}
CVE-2026-7320 (GCVE-0-2026-7320)
Vulnerability from cvelistv5 – Published: 2026-04-28 13:49 – Updated: 2026-06-30 12:06
VLAI
EPSS
Title
Information disclosure due to incorrect boundary conditions in the Audio/Video component
Summary
Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.
Severity
7.5 (High)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
31 references
Impacted products
20 products
Credits
Xuehao Guo
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CVE-2026-7321 (GCVE-0-2026-7321)
Vulnerability from cvelistv5 – Published: 2026-04-28 13:49 – Updated: 2026-04-30 17:19
VLAI
EPSS
Title
Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component
Summary
Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.10.1 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.10.1 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
Credits
The Mozilla Fuzzing Team
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CVE-2026-7322 (GCVE-0-2026-7322)
Vulnerability from cvelistv5 – Published: 2026-04-28 13:49 – Updated: 2026-06-30 12:06
VLAI
EPSS
Title
Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1
Summary
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Severity
7.3 (High)
8.8 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
31 references
Impacted products
20 products
Credits
C.M.Chang, Christian Holler, Steve Fink and the Mozilla Fuzzing Team
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CVE-2026-7323 (GCVE-0-2026-7323)
Vulnerability from cvelistv5 – Published: 2026-04-28 13:49 – Updated: 2026-06-30 12:10
VLAI
EPSS
Title
Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1
Summary
Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.
Severity
7.3 (High)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
30 references
Impacted products
20 products
Credits
Ryan Hunt, Steve Fink and the Mozilla Fuzzing Team
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CVE-2026-7324 (GCVE-0-2026-7324)
Vulnerability from cvelistv5 – Published: 2026-04-28 13:49 – Updated: 2026-06-30 12:06
VLAI
EPSS
Title
Memory safety bugs fixed in Thunderbird 150.0.1
Summary
Memory safety bugs present in Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.1 and Thunderbird 150.0.1.
Severity
7.3 (High)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://bugzilla.mozilla.org/buglist.cgi?bug_id=2… | |
| https://www.mozilla.org/security/advisories/mfsa2… | |
| https://www.mozilla.org/security/advisories/mfsa2… | |
| https://access.redhat.com/security/cve/CVE-2026-7324 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2463482 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
150.0.1 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
150.0.1 , ≤ *
(rpm)
|
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
Credits
The Mozilla Fuzzing Team
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]
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],
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"title": "CISA ADP Vulnrichment"
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],
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"value": "Memory safety bugs present in Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.1 and Thunderbird 150.0.1."
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],
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{
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"title": "Memory safety bugs fixed in Thunderbird 150.0.1"
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}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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