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TI-2011-02245 Aliases CVE-2011-2581GHSA-c76p-58cp-48fg

The ACL implementation in Cisco NX-OS 5.0(2) and 5.0(3) before 5.0(3)N2(1) on Nexus 5000…

Priority LOW 27CWE-264Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Partial · None · None
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.

Summary

The ACL implementation in Cisco NX-OS 5.0(2) and 5.0(3) before 5.0(3)N2(1) on Nexus 5000 series switches, and NX-OS before 5.0(3)U1(2a) on Nexus 3000 series switches, does not properly handle comments in conjunction with deny statements, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by sending packets, aka Bug IDs CSCto09813 and CSCtr61490.

Why it matters now

EPSS 0.01992 80th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:a:cisco:nx-os:5.0\(2\):*:*:*:*:*:*:*5.0(2)VulnerableCisco
cpe:2.3:a:cisco:nx-os:5.0\(3\)n1\(1\):*:*:*:*:*:*:*5.0(3)n1(1)VulnerableCisco
cpe:2.3:a:cisco:nx-os:5.0\(3\)n1\(1a\):*:*:*:*:*:*:*5.0(3)n1(1a)VulnerableCisco
cpe:2.3:a:cisco:nx-os:5.0\(3\)n1\(1b\):*:*:*:*:*:*:*5.0(3)n1(1b)VulnerableCisco
cpe:2.3:o:cisco:nx-os:5.0\(3\):*:*:*:*:*:*:*5.0(3)VulnerableCisco
cpe:2.3:o:cisco:nx-os:5.0\(3\)n1\(1c\):*:*:*:*:*:*:*5.0(3)n1(1c)VulnerableCisco
cpe:2.3:h:cisco:nexus_5000:*:*:*:*:*:*:*:*all versionsVulnerableCisco
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*up to 5.0\(3\)u1\(2\)VulnerableCisco
cpe:2.3:o:cisco:nx-os:5.0\(3\)u1\(1a\):*:*:*:*:*:*:*5.0(3)u1(1a)VulnerableCisco
cpe:2.3:o:cisco:nx-os:5.0\(3\)u1\(1b\):*:*:*:*:*:*:*5.0(3)u1(1b)VulnerableCisco
  • cpe:2.3:a:cisco:nx-os:5.0\(2\):*:*:*:*:*:*:* Versions 5.0(2) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:nx-os:5.0\(3\)n1\(1\):*:*:*:*:*:*:* Versions 5.0(3)n1(1) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:nx-os:5.0\(3\)n1\(1a\):*:*:*:*:*:*:* Versions 5.0(3)n1(1a) Vulnerable ·Cisco
  • cpe:2.3:a:cisco:nx-os:5.0\(3\)n1\(1b\):*:*:*:*:*:*:* Versions 5.0(3)n1(1b) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:5.0\(3\):*:*:*:*:*:*:* Versions 5.0(3) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:5.0\(3\)n1\(1c\):*:*:*:*:*:*:* Versions 5.0(3)n1(1c) Vulnerable ·Cisco
  • cpe:2.3:h:cisco:nexus_5000:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* Versions up to 5.0\(3\)u1\(2\) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:5.0\(3\)u1\(1a\):*:*:*:*:*:*:* Versions 5.0(3)u1(1a) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:5.0\(3\)u1\(1b\):*:*:*:*:*:*:* Versions 5.0(3)u1(1b) Vulnerable ·Cisco
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:cisco:nx-os:5.0\(3\)u1\(1d\):*:*:*:*:*:*:*5.0(3)u1(1d)VulnerableCisco
cpe:2.3:h:cisco:nexus_3000:*:*:*:*:*:*:*:*all versionsVulnerableCisco
  • cpe:2.3:o:cisco:nx-os:5.0\(3\)u1\(1d\):*:*:*:*:*:*:* Versions 5.0(3)u1(1d) Vulnerable ·Cisco
  • cpe:2.3:h:cisco:nexus_3000:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-2581
  2. 2026-10-03 Alias added: GHSA-c76p-58cp-48fg

References

Advisory 1

  • TI-2013-01024 Multiple buffer overflows in the Cisco Discovery Protocol (CDP) implementation in Cisco… CVSS 2.0HIGH 8.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences