CVE-2025-20141
Cisco IOS XR Software Release 7.9.2 Denial of Service Vulnerabillity
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.
Weakness: CWE-770
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco IOS XR Software | Routing & Switching | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco IOS XR Software
Vendor advisory
Cisco IOS XR Software Release 7.9.2 Denial of Service Vulnerability
Cisco’s rating: High (advisory CVSS 7.4) · Published Mar 12, 2025
Bug ID: CSCwf89955
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from