Home/CVE/The BGP implementation in Cisco NX-OS does not properly filter AS paths, which allows remote attackers to cause a denial
CVE

CVE-2012-4099

The BGP implementation in Cisco NX-OS does not properly filter AS paths, which allows remote attackers to cause a denial

The BGP implementation in Cisco NX-OS does not properly filter AS paths, which allows remote attackers to cause a denial of service (BGP service reset and resync) via a malformed UPDATE message, aka Bug ID CSCtn13065.

MEDIUM · CVSS 4.3 EPSS 0.00443
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
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Weakness Classification

CWE-20Improper Input Validation
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Affected Products & Versions

1
cisco nx-osall versions
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Scoring & Timeline

4.3
MEDIUM · CVSS v2 (legacy) · psirt@cisco.com
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This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:M/Au:N/C:N/I:N/A:P
Published to NVD14 Oct 2013 · 03:34 AM
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References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://osvdb.org/98130
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2012-4099Vendor Advisory
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