cvedb.io
CVE-2025-20142
HIGH · CVSS 8.6
EPSS exploitation probability: 0%
Published 2025-03-12T16:15:21.573 · Last modified 2026-06-17T08:40:46.090

Summary

A vulnerability in the IPv4 access control list (ACL) feature and quality of service (QoS) policy feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote attacker to cause a line card to reset, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of malformed IPv4 packets that are received on line cards where the interface has either an IPv4 ACL or QoS policy applied. An attacker could exploit this vulnerability by sending crafted IPv4 packets through an affected device. A successful exploit could allow the attacker to cause network processor errors, resulting in a reset or shutdo

Affected products

cisco — ios_xr

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.