Riskcovery

CVE-2025-20253

Cisco IOS, IOS XE, Secure Firewall Adaptive Security Appliance, and Secure Firewall Threat Defense Software IKEv2 Denial of Service Vulnerability

State
Published
Severity
8.6 High
Published
Aug 14, 2025
Updated
Aug 14, 2025
Reserved
Oct 10, 2024

Read the record on cve.org

Description

A vulnerability in the IKEv2 feature of Cisco IOS Software, IOS XE Software, Secure Firewall ASA Software, and Secure FTD Software could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a DoS condition.

This vulnerability is due to the improper processing of IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device. A successful exploit could allow the attacker to cause an infinite loop that exhausts resources and could cause the device to reload.

Scores

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

Weaknesses

  • CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')

Affected Products

ProductVersions
Cisco Adaptive Security Appliance (ASA) SoftwareCisco
  • 9.12.3Affected
  • 9.8.3Affected
  • 9.12.1Affected
  • 9.8.1Affected
  • 9.12.2Affected
  • 9.8.2.45Affected
  • 9.8.2Affected
  • 9.8.4Affected
  • 9.14.1Affected
  • 9.12.4Affected
  • 9.8.2.26Affected
  • 9.8.2.24Affected
  • 9.8.2.15Affected
  • 9.8.2.14Affected
  • 9.8.2.35Affected
  • 9.8.2.20Affected
  • 9.8.2.8Affected
  • 9.8.2.17Affected
  • 9.8.2.28Affected
  • 9.8.2.33Affected
  • 9.8.2.38Affected
  • 9.8.4.25Affected
  • 9.12.3.2Affected
  • 9.12.3.7Affected
  • 9.8.3.18Affected
  • and 192 more versions
Cisco Firepower Threat Defense SoftwareCisco
  • 6.2.3.14Affected
  • 6.4.0.1Affected
  • 6.2.3.7Affected
  • 6.2.3Affected
  • 6.4.0.2Affected
  • 6.2.3.9Affected
  • 6.2.3.1Affected
  • 6.2.3.2Affected
  • 6.4.0.5Affected
  • 6.2.3.10Affected
  • 6.4.0Affected
  • 6.4.0.3Affected
  • 6.2.3.6Affected
  • 6.4.0.4Affected
  • 6.2.3.15Affected
  • 6.2.3.5Affected
  • 6.2.3.4Affected
  • 6.2.3.3Affected
  • 6.2.3.8Affected
  • 6.4.0.6Affected
  • 6.2.3.11Affected
  • 6.2.3.12Affected
  • 6.2.3.13Affected
  • 6.4.0.7Affected
  • 6.4.0.8Affected
  • and 69 more versions

References

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