CVE-2024-20322

5.8 mediumEPSS 0.5%

Medium (5.8) in cisco ios xr. EPSS 0.5% chance of exploitation in the next 30 days.

A vulnerability in the access control list (ACL) processing on Pseudowire 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 improper assignment of lookup keys to internal interface contexts. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to access resources behind the affected device that were supposed to be protected by a configured ACL.

Severity

CVSS 3.1

5.8 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-31)
CWE: CWE-284
Published: 2024-03-13
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cisco:ios_xr

References

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