Resource exhaustion in Cisco Ios Xr Software
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.
EPSS: 0.002 (13.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
Weakness classification (CWE)
References
- psirt@cisco.com (Vendor Advisory)
- psirt@cisco.com (Product)
Frequently asked questions
- What is CVE-2025-20141?
- CVE-2025-20141 is a high-severity vulnerability in Cisco Ios Xr Software, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.4/10. Published 2025-03-12.
- How severe is CVE-2025-20141?
- High severity. CVSS v3 base score is 7.4 out of 10.