Home/CVE/The regex engine in the BGP implementation in Cisco NX-OS, when a complex regular expression is configured for inbound r
CVE

CVE-2013-1121

The regex engine in the BGP implementation in Cisco NX-OS, when a complex regular expression is configured for inbound r

The regex engine in the BGP implementation in Cisco NX-OS, when a complex regular expression is configured for inbound routes, allows remote attackers to cause a denial of service (device reload) via a crafted AS path set, aka Bug ID CSCuf49554.

MEDIUM · CVSS 5.4 EPSS 0.0071
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
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Affected Products & Versions

1
cisco nx-osall versions
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Scoring & Timeline

5.4
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:H/Au:N/C:N/I:N/A:C
Published to NVD19 Sep 2013 · 06:55 PM
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1121Vendor Advisory
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