CVE-2025-20209 (GCVE-0-2025-20209)

Vulnerability from cvelistv5 – Published: 2025-03-12 16:13 – Updated: 2025-03-12 17:51
VLAI?
Title
Cisco IOS XR Software Internet Key Exchange Version 2 Denial of Service Vulnerability
Summary
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.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
Cisco Cisco IOS XR Software Affected: 6.5.3
Affected: 6.6.1
Affected: 6.5.2
Affected: 6.6.2
Affected: 6.5.1
Affected: 7.0.1
Affected: 6.6.25
Affected: 7.0.0
Affected: 7.1.1
Affected: 6.6.3
Affected: 7.0.2
Affected: 7.2.0
Affected: 7.1.2
Affected: 7.2.1
Affected: 7.3.1
Affected: 7.4.1
Affected: 7.2.2
Affected: 7.3.2
Affected: 7.5.1
Affected: 7.3.27
Affected: 7.6.1
Affected: 7.5.2
Affected: 7.7.1
Affected: 7.4.2
Affected: 7.6.2
Affected: 7.8.1
Affected: 7.7.2
Affected: 7.9.1
Affected: 7.8.2
Affected: 7.8.22
Affected: 7.10.1
Affected: 7.7.21
Affected: 7.9.2
Affected: 7.11.1
Affected: 7.10.2
Affected: 24.1.1
Affected: 7.11.2
Affected: 24.2.1
Affected: 24.1.2
Affected: 24.2.11
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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