CVE-2025-20141: Cisco IOS XR Software Release 7.9.2 Denial of Service Vulnerabillity
First published: Wed Mar 12 2025(Updated: )
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.
Credit: psirt@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XRv 9000 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-20141?
CVE-2025-20141 is rated as high severity due to the potential for an attacker to disrupt control plane traffic.
How do I fix CVE-2025-20141?
To fix CVE-2025-20141, upgrade to Cisco IOS XR Software Release 7.9.3 or later.
What impact does CVE-2025-20141 have on Cisco IOS XR platforms?
CVE-2025-20141 can cause control plane traffic to stop working, impacting network operations.
Who is affected by CVE-2025-20141?
CVE-2025-20141 affects multiple Cisco IOS XR platforms running vulnerable versions of the software.
Is authentication required to exploit CVE-2025-20141?
No, CVE-2025-20141 can be exploited by an unauthenticated, adjacent attacker.
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