Riskcovery

CVE-2025-20209

Cisco IOS XR Software Internet Key Exchange Version 2 Denial of Service Vulnerability

State
Published
Severity
7.5 High
Published
Mar 12, 2025
Updated
Mar 12, 2025
Reserved
Oct 10, 2024

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hcisco

Weaknesses

  • CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

ProductVersions
Cisco IOS XR SoftwareCisco
  • 6.5.3Affected
  • 6.6.1Affected
  • 6.5.2Affected
  • 6.6.2Affected
  • 6.5.1Affected
  • 7.0.1Affected
  • 6.6.25Affected
  • 7.0.0Affected
  • 7.1.1Affected
  • 6.6.3Affected
  • 7.0.2Affected
  • 7.2.0Affected
  • 7.1.2Affected
  • 7.2.1Affected
  • 7.3.1Affected
  • 7.4.1Affected
  • 7.2.2Affected
  • 7.3.2Affected
  • 7.5.1Affected
  • 7.3.27Affected
  • 7.6.1Affected
  • 7.5.2Affected
  • 7.7.1Affected
  • 7.4.2Affected
  • 7.6.2Affected
  • and 15 more versions

References

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