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 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No CVSS 3.x data is available for this CVE.
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-264 | Permissions, Privileges, and Access Controls | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| cisco nx-os | 5.0(2) 5.0(3)n1(1) 5.0(3)n1(1a) 5.0(3)n1(1b) 5.0(3) 5.0(3)n1(1c) <= 5.0\(3\)u1\(2\) 5.0(3)u1(1a) 5.0(3)u1(1b) 5.0(3)u1(1d) |
CPE
Remediation
| |
| cisco nexus 5000 | All versions |
CPE
Remediation
| |
| cisco nexus 3000 | All versions |
CPE
Remediation
| |
Change History
11 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 16, 2026 | CVE Modified | [email protected] |
| Apr 29, 2026 | Status Change | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Apr 5, 2022 | CPE Deprecation Remap | [email protected] |
| Apr 5, 2022 | CPE Deprecation Remap | [email protected] |
| Apr 5, 2022 | CPE Deprecation Remap | [email protected] |
| Apr 5, 2022 | CPE Deprecation Remap | [email protected] |
| Apr 5, 2022 | CPE Deprecation Remap | [email protected] |
| Apr 5, 2022 | CPE Deprecation Remap | [email protected] |
| Sep 14, 2011 | Initial Analysis | [email protected] |