Riskcovery

CVE-2025-20144

Cisco IOS XR Software Access Control List Bypass Vulnerability

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

Read the record on cve.org

Description

A vulnerability in the hybrid access control list (ACL) processing of IPv4 packets in Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL.

This vulnerability is due to incorrect handling of packets when a specific configuration of the hybrid ACL exists. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to bypass a configured ACL on the affected device. For more information, see the section of this advisory. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.

Scores

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

Weaknesses

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
  • 6.6.4Affected
  • 7.3.1Affected
  • 7.4.1Affected
  • 7.2.2Affected
  • 7.3.2Affected
  • 7.5.1Affected
  • 7.6.1Affected
  • 7.5.2Affected
  • 7.7.1Affected
  • 7.3.3Affected
  • and 18 more versions

References

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