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GHSA-VX24-6MQ3-C5CQ
Vulnerability from github – Published: 2025-05-07 18:30 – Updated: 2025-05-07 18:30
VLAI?
Details
A vulnerability in the Switch Integrated Security Features (SISF) of Cisco IOS Software, Cisco IOS XE Software, Cisco NX-OS Software, and Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to the incorrect handling of DHCPv6 packets. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Severity ?
7.4 (High)
{
"affected": [],
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},
"details": "A vulnerability in the Switch Integrated Security Features (SISF) of Cisco IOS Software, Cisco IOS XE Software, Cisco NX-OS Software, and Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.\n\nThis vulnerability is due to the incorrect handling of DHCPv6 packets. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.",
"id": "GHSA-vx24-6mq3-c5cq",
"modified": "2025-05-07T18:30:49Z",
"published": "2025-05-07T18:30:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20191"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sisf-dos-ZGwt4DdY"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
CVE-2025-20191 (GCVE-0-2025-20191)
Vulnerability from cvelistv5 – Published: 2025-05-07 17:18 – Updated: 2025-05-07 19:46
VLAI?
EPSS
Summary
A vulnerability in the Switch Integrated Security Features (SISF) of Cisco IOS Software, Cisco IOS XE Software, Cisco NX-OS Software, and Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to the incorrect handling of DHCPv6 packets. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Severity ?
7.4 (High)
CWE
- CWE-805 - Buffer Access with Incorrect Length Value
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Affected:
8.2(5)
Affected: 7.3(5)D1(1) Affected: 8.4(2) Affected: 8.4(3) Affected: 9.2(3) Affected: 9.2(2v) Affected: 7.3(4)D1(1) Affected: 8.2(1) Affected: 9.2(1) Affected: 9.2(2t) Affected: 9.2(3y) Affected: 7.0(3)I7(6z) Affected: 9.3(2) Affected: 7.0(3)I7(3z) Affected: 7.0(3)IM7(2) Affected: 7.0(3)I7(5a) Affected: 8.1(1) Affected: 8.2(2) Affected: 8.3(2) Affected: 7.3(2)D1(3a) Affected: 9.2(4) Affected: 8.1(2) Affected: 7.3(3)D1(1) Affected: 8.2(3) Affected: 7.0(3)I7(2) Affected: 7.0(3)I7(3) Affected: 8.4(1) Affected: 7.3(0)DX(1) Affected: 7.3(2)D1(1) Affected: 9.3(1) Affected: 7.0(3)I7(6) Affected: 7.3(2)D1(2) Affected: 8.2(4) Affected: 7.0(3)I7(4) Affected: 7.0(3)I7(7) Affected: 9.3(1z) Affected: 9.2(2) Affected: 8.1(2a) Affected: 7.3(2)D1(3) Affected: 7.0(3)I7(5) Affected: 7.0(3)I7(1) Affected: 7.0(3)IA7(2) Affected: 7.0(3)IA7(1) Affected: 8.3(1) Affected: 7.3(1)D1(1) Affected: 7.3(0)D1(1) Affected: 9.3(3) Affected: 7.3(2)D1(1d) Affected: 7.0(3)I7(8) Affected: 9.3(4) Affected: 7.3(6)D1(1) Affected: 8.2(6) Affected: 9.3(5) Affected: 7.0(3)I7(9) Affected: 9.3(6) Affected: 10.1(2) Affected: 10.1(1) Affected: 8.4(4) Affected: 7.3(7)D1(1) Affected: 9.3(5w) Affected: 8.2(7) Affected: 9.3(7) Affected: 9.3(7k) Affected: 7.0(3)I7(9w) Affected: 10.2(1) Affected: 7.3(8)D1(1) Affected: 9.3(7a) Affected: 8.2(7a) Affected: 9.3(8) Affected: 8.4(4a) Affected: 8.4(5) Affected: 7.0(3)I7(10) Affected: 8.2(8) Affected: 10.2(1q) Affected: 10.2(2) Affected: 9.3(9) Affected: 10.1(2t) Affected: 7.3(9)D1(1) Affected: 10.2(3) Affected: 8.4(6) Affected: 10.2(3t) Affected: 9.3(10) Affected: 10.2(2a) Affected: 8.2(9) Affected: 10.3(1) Affected: 10.2(4) Affected: 8.4(7) Affected: 10.3(2) Affected: 8.4(6a) Affected: 9.3(11) Affected: 10.3(3) Affected: 10.2(5) Affected: 8.2(10) Affected: 9.3(12) Affected: 10.2(3v) Affected: 10.4(1) Affected: 8.4(8) Affected: 10.3(99w) Affected: 10.2(6) Affected: 10.3(3w) Affected: 10.3(99x) Affected: 10.3(3o) Affected: 8.4(9) Affected: 10.3(4) Affected: 10.3(3p) Affected: 10.3(4a) Affected: 10.4(2) Affected: 10.3(3q) Affected: 9.3(13) Affected: 8.2(11) Affected: 10.3(5) Affected: 10.2(7) Affected: 10.4(3) Affected: 10.3(3x) Affected: 10.3(4g) Affected: 10.2(8) Affected: 10.3(3r) Affected: 9.3(14) Affected: 10.3(4h) |
|||||||
|
|||||||||
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{
"status": "affected",
"version": "8.5.182.107"
},
{
"status": "affected",
"version": "8.5.182.11"
},
{
"status": "affected",
"version": "8.5.182.108"
},
{
"status": "affected",
"version": "8.10.190.0"
},
{
"status": "affected",
"version": "8.10.195.0"
},
{
"status": "affected",
"version": "8.5.182.12"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the Switch Integrated Security Features (SISF) of Cisco IOS Software, Cisco IOS XE Software, Cisco NX-OS Software, and Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r\nThis vulnerability is due to the incorrect handling of DHCPv6 packets. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-805",
"description": "Buffer Access with Incorrect Length Value",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-05-07T17:18:35.677Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-sisf-dos-ZGwt4DdY",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sisf-dos-ZGwt4DdY"
}
],
"source": {
"advisory": "cisco-sa-sisf-dos-ZGwt4DdY",
"defects": [
"CSCvq14413"
],
"discovery": "EXTERNAL"
},
"title": "Multiple Cisco Products Denial of Service Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2025-20191",
"datePublished": "2025-05-07T17:18:35.677Z",
"dateReserved": "2024-10-10T19:15:13.226Z",
"dateUpdated": "2025-05-07T19:46:53.825Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Sightings
| Author | Source | Type | Date |
|---|
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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