Vulnerability Monitor

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CVE-2025-20141

A vulnerability in the handling of specific packets that are punted from a line card to a route processor in Cisco IOS XR Software Release 7.9.2 could allow an unauthenticated, adjacent attacker to cause control plane traffic to stop working on multiple Cisco IOS XR platforms.  This vulnerability is due to incorrect handling of packets that are punted to the route processor. An attacker could exploit this vulnerability by sending traffic, which must be handled by the Linux stack on the route processor, to an affected device. A successful exploit could allow the attacker to cause control plane traffic to stop working, resulting in a denial of service (DoS) condition.

Published

2025-03-12T16:15:21.420

Last Modified

2025-08-06T17:05:07.530

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.4 (HIGH)

Weaknesses
  • Type: Primary
    CWE-770
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xr 7.9.2 Yes
Hardware cisco ncs_540-12z20g-sys-a - No
Hardware cisco ncs_540-12z20g-sys-d - No
Hardware cisco ncs_540-24q2c2dd-sys - No
Hardware cisco ncs_540-24q8l2dd-sys - No
Hardware cisco ncs_540-24z8q2c-sys - No
Hardware cisco ncs_540-28z4c-sys-a - No
Hardware cisco ncs_540-28z4c-sys-d - No
Hardware cisco ncs_540-6z14s-sys-d - No
Hardware cisco ncs_540-6z18g-sys-a - No
Hardware cisco ncs_540-6z18g-sys-d - No
Hardware cisco ncs_540-acc-sys - No
Hardware cisco ncs_540-fh-agg - No
Hardware cisco ncs_540-fh-csr-sys - No
Hardware cisco ncs_540x-12z16g-sys-a - No
Hardware cisco ncs_540x-12z16g-sys-d - No
Hardware cisco ncs_540x-16z4g8q2c-a - No
Hardware cisco ncs_540x-16z4g8q2c-d - No
Hardware cisco ncs_540x-16z8q2c-d - No
Hardware cisco ncs_540x-4z14g2q-a - No
Hardware cisco ncs_540x-4z14g2q-d - No
Hardware cisco ncs_540x-6z18g-sys-a - No
Hardware cisco ncs_540x-6z18g-sys-d - No
Hardware cisco ncs_540x-8z16g-sys-a - No
Hardware cisco ncs_540x-8z16g-sys-d - No
Hardware cisco ncs_540x-acc-sys - No
Hardware cisco ncs_5501 - No
Hardware cisco ncs_5501-se - No
Hardware cisco ncs_5502 - No
Hardware cisco ncs_5502-se - No
Hardware cisco ncs_5504 - No
Hardware cisco ncs_5508 - No
Hardware cisco ncs_5516 - No
Hardware cisco ncs_55a1-24h - No
Hardware cisco ncs_55a1-24q6h-s - No
Hardware cisco ncs_55a1-24q6h-ss - No
Hardware cisco ncs_55a1-36h - No
Hardware cisco ncs_55a1-36h-se - No
Hardware cisco ncs_55a1-48q6h - No
Hardware cisco ncs_55a2-mod-hd-s - No
Hardware cisco ncs_55a2-mod-s - No
Hardware cisco ncs_55a2-mod-se-s - No
Hardware cisco ncs_57b1-5dse-sys - No
Hardware cisco ncs_57b1-6d24-sys - No
Hardware cisco ncs_57c1-48q6-sys - No
Hardware cisco ncs_57c3-mod-sys - No
Hardware cisco ncs_57d2-18dd-sys - No
References