CVE-2025-20141

Description

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.

Reserved 2024-10-10 | Published 2025-03-12 | Updated 2025-03-12 | Assigner cisco

Problem types

Allocation of Resources Without Limits or Throttling

Product status

Default status
unknown

7.9.2
affected

References

sec.cloudapps.cisco.com/...tyAdvisory/cisco-sa-xr792-bWfVDPY (cisco-sa-xr792-bWfVDPY)

blog.apnic.net/2024/09/02/crafting-endless-as-paths-in-bgp/ (Crafting endless AS-PATHS in BGP)

cve.org (CVE-2025-20141)

nvd.nist.gov (CVE-2025-20141)

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