VULNERABILITY

Cisco IOS-XR: CVE-2025-20209: Cisco IOS XR Software Internet Key Exchange Version 2 Denial of Service Vulnerability

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Cisco IOS-XR: CVE-2025-20209: Cisco IOS XR Software Internet Key Exchange Version 2 Denial of Service Vulnerability

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
03/12/2025
Created
03/14/2025
Added
03/13/2025
Modified
03/13/2025

Description

A vulnerability in the Internet Key Exchange version 2 (IKEv2) function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to prevent an affected device from processing any control plane UDP packets. This vulnerability is due to improper handling of malformed IKEv2 packets. An attacker could exploit this vulnerability by sending malformed IKEv2 packets to an affected device. A successful exploit could allow the attacker to prevent the affected device from processing any control plane UDP packets, resulting in a denial of service (DoS) condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Solution(s)

  • update-xros

References

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