CVE-2025-20224

State
Published
Severity
5.8 Medium
Published
Aug 14, 2025
Updated
Aug 14, 2025
Reserved
Oct 10, 2024

Read the record on cve.org

Description

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a memory leak, resulting in a denial of service (DoS) condition. This vulnerability is due to improper parsing of IKEv2 packets. An attacker could exploit this vulnerability by sending a continuous stream of crafted IKEv2 packets to an affected device. A successful exploit could allow the attacker to partially exhaust system memory, causing system instability like being unable to establish new IKEv2 VPN sessions. A manual reboot of the device is required to recover from this condition.

Scores

CVSSScoreVectorSource
3.15.8 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Lcisco

Weaknesses

  • CWE-401 Missing Release of Memory after Effective Lifetime

Affected Products

ProductVersions
Cisco Adaptive Security Appliance (ASA) SoftwareCisco
  • 9.8.1Affected
  • 9.8.1.5Affected
  • 9.8.1.7Affected
  • 9.8.2Affected
  • 9.8.2.8Affected
  • 9.8.2.14Affected
  • 9.8.2.15Affected
  • 9.8.2.17Affected
  • 9.8.2.20Affected
  • 9.8.2.24Affected
  • 9.8.2.26Affected
  • 9.8.2.28Affected
  • 9.8.2.33Affected
  • 9.8.2.35Affected
  • 9.8.2.38Affected
  • 9.8.3.8Affected
  • 9.8.3.11Affected
  • 9.8.3.14Affected
  • 9.8.3.16Affected
  • 9.8.3.18Affected
  • 9.8.3.21Affected
  • 9.8.3Affected
  • 9.8.3.26Affected
  • 9.8.3.29Affected
  • 9.8.4Affected
  • and 195 more versions
Cisco Firepower Threat Defense SoftwareCisco
  • 6.2.3Affected
  • 6.2.3.1Affected
  • 6.2.3.2Affected
  • 6.2.3.3Affected
  • 6.2.3.4Affected
  • 6.2.3.5Affected
  • 6.2.3.6Affected
  • 6.2.3.7Affected
  • 6.2.3.8Affected
  • 6.2.3.10Affected
  • 6.2.3.11Affected
  • 6.2.3.9Affected
  • 6.2.3.12Affected
  • 6.2.3.13Affected
  • 6.2.3.14Affected
  • 6.2.3.15Affected
  • 6.2.3.16Affected
  • 6.2.3.17Affected
  • 6.2.3.18Affected
  • 6.6.0Affected
  • 6.6.0.1Affected
  • 6.6.1Affected
  • 6.6.3Affected
  • 6.6.4Affected
  • 6.6.5Affected
  • and 69 more versions

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.