5.8

CVE-2025-20144: cisco cisco ios xr software Improper Access Control

CVSS: 5.8v3.1MediumAnalyzed
Published 12-03-2025Last modified 21-03-2025
Open JSON

Vulnerability summary

CVE-2025-20144 is a medium (CVSS 5.8) Improper Access Control vulnerability in cisco cisco ios xr software. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 26.8% of scored vulnerabilities.

Overall risk
23/100
0100
Low · default modelHow is this calculated?
CVSS score
5.8/10
010
Medium · v3.1 (NVD)
EPSS score
0.35%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-03-2025
    PublishedVulnerability first disclosed.
  2. 21-03-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.35%

Chance of exploitation in the next 30 days

Percentile

27%

Versus all other CVEs

30-day change

+0.01 pp

From 0.34% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.35%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco2 products
  • cisco ios xr software6.5.3 | 6.5.2 | 6.5.92 | 6.5.1 | 6.6.2 | 7.0.1 | 6.6.25 | 6.6.1 | 6.5.93 | 7.1.1 | 7.0.90 | 6.6.3 | 7.0.2 | 7.2.1 | 7.1.2 | 6.6.4 | 7.3.1 | 7.4.1 | 7.2.2 | 7.3.2 | 7.5.1 | 7.6.1 | 7.5.2 | 7.7.1 | 7.3.3 | 7.4.2 | 7.3.4 | 7.6.2 | 7.8.1 | 7.5.3 | 7.7.2 | 7.9.1 | 7.8.2 | 7.5.4 | 7.8.22 | 7.10.1 | 7.7.21 | 7.9.2 | 7.3.5 | 7.5.5 | 7.11.1 | 7.10.2 | 7.3.6
  • ios_xr6.5.1 | 6.5.2 | 6.5.3 | 6.5.92 | 6.5.93 | 6.6.1 | 6.6.2 | 6.6.3 | 6.6.4 | 6.6.25 | 7.0.1 | 7.0.2 | 7.0.90 | 7.1.1 | 7.1.2 | 7.2.1 | 7.2.2 | 7.3.1 | 7.3.2 | 7.3.3 | 7.3.4 | 7.3.5 | 7.3.6 | 7.4.1 | 7.4.2 | 7.5.1 | 7.5.2 | 7.5.3 | 7.5.4 | 7.5.5 | 7.6.1 | 7.6.2 | 7.7.1 | 7.7.2 | 7.7.21 | 7.8.1 | 7.8.2 | 7.8.22 | 7.9.1 | 7.9.2 | 7.10.1 | 7.10.2 | 7.11.1

1 vendor · 2 products

References

2 links