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VULNERABILITIES

CVE-2011-2581 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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Weakness Enumeration

CWE-IDCWE NameSource
CWE-264Permissions, Privileges, and Access Controls[email protected]

Affected Products

ProductVersions
cisco nx-os
5.0(2)
5.0(3)n1(1)
5.0(3)n1(1a)
5.0(3)n1(1b)
5.0(3)

CPE

  • cpe:2.3:a:cisco:nx-os:5.0(2):*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:nx-os:5.0(3)n1(1):*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:nx-os:5.0(3)n1(1a):*:*:*:*:*:*:*
  • cpe:2.3:a:cisco:nx-os:5.0(3)n1(1b):*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:nx-os:5.0(3):*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:nx-os:5.0(3)n1(1c):*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:nx-os:5.0(3)u1(1a):*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:nx-os:5.0(3)u1(1b):*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:nx-os:5.0(3)u1(1d):*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
cisco nexus 5000
All versions

CPE

  • cpe:2.3:h:cisco:nexus_5000:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
cisco nexus 3000
All versions

CPE

  • cpe:2.3:h:cisco:nexus_3000:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

11 change records found show changes


QUICK INFO

CVE Dictionary Entry:
CVE-2011-2581
NVD Published Date:
Sep 14, 2011
NVD Last Modified:
Jun 16, 2026
Source:
[email protected]
CVE-2011-2581 Details - Not Deferred