Riskcovery

CVE-2025-20145

Cisco IOS XR Software Access Control List Bypass Vulnerability

State
Published
Severity
5.8 Medium
Published
Mar 12, 2025
Updated
Mar 21, 2025
Reserved
Oct 10, 2024

Read the record on cve.org

Description

A vulnerability in the access control list (ACL) processing in the egress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL.

This vulnerability exists because certain packets are handled incorrectly when they are received on an ingress interface on one line card and destined out of an egress interface on another line card where the egress ACL is configured. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to bypass an egress ACL on the affected device. For more information about this vulnerability, see the section of this advisory. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Scores

CVSSScoreVectorSource
3.15.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:Ncisco

Weaknesses

  • CWE-264 Permissions, Privileges, and Access Control

Affected Products

ProductVersions
Cisco IOS XR SoftwareCisco
  • 6.5.3Affected
  • 6.5.2Affected
  • 6.5.92Affected
  • 6.5.1Affected
  • 6.6.2Affected
  • 7.0.1Affected
  • 6.6.25Affected
  • 6.6.1Affected
  • 6.5.93Affected
  • 7.1.1Affected
  • 7.0.90Affected
  • 6.6.3Affected
  • 7.0.2Affected
  • 7.2.1Affected
  • 7.1.2Affected
  • 7.0.11Affected
  • 7.0.12Affected
  • 7.0.14Affected
  • 6.6.4Affected
  • 7.2.12Affected
  • 7.3.1Affected
  • 7.4.1Affected
  • 7.2.2Affected
  • 7.3.15Affected
  • 7.3.16Affected
  • and 36 more versions

References

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