Riskcovery

CVE-2023-20191

State
Published
Severity
5.8 Medium
Published
Sep 13, 2023
Updated
Aug 2, 2024
Reserved
Oct 27, 2022

Read the record on cve.org

Description

A vulnerability in the access control list (ACL) processing on MPLS interfaces in the ingress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to incomplete support for this feature. 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 ACL on the affected device. There are workarounds that address this vulnerability.

This advisory is part of the September 2023 release of the Cisco IOS XR Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: September 2023 Semiannual Cisco IOS XR Software Security Advisory Bundled Publication .

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

Affected Products

ProductVersions
Cisco IOS XR SoftwareCisco
  • 6.4.1Affected
  • 6.5.1Affected
  • 6.5.2Affected
  • 6.5.3Affected
  • 6.6.2Affected
  • 6.6.3Affected
  • 6.6.25Affected
  • 6.6.4Affected
  • 7.0.1Affected
  • 7.0.2Affected
  • 7.1.1Affected
  • 7.1.2Affected
  • 7.2.1Affected
  • 7.2.2Affected
  • 7.3.1Affected
  • 7.3.2Affected
  • 7.3.3Affected
  • 7.3.5Affected
  • 7.4.1Affected
  • 7.4.2Affected
  • 7.5.1Affected
  • 7.5.3Affected
  • 7.5.2Affected
  • 7.5.4Affected
  • 7.6.1Affected
  • and 6 more versions

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.