Riskcovery

CVE-2026-20015

State
Published
Severity
5.8 Medium
Published
Mar 4, 2026
Updated
Mar 4, 2026
Reserved
Oct 8, 2025

Read the record on cve.org

Description

A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device that may impact the availability of services to devices elsewhere in the network. This vulnerability is due to a memory leak when parsing 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 exhaust resources, causing a DoS condition that will eventually require the device to be manually reloaded.

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 Secure Firewall Adaptive Security Appliance (ASA) SoftwareCisco
  • 9.18.1Affected
  • 9.18.1.3Affected
  • 9.18.2Affected
  • 9.18.2.5Affected
  • 9.18.2.7Affected
  • 9.18.2.8Affected
  • 9.18.3Affected
  • 9.18.3.39Affected
  • 9.18.3.46Affected
  • 9.18.3.53Affected
  • 9.18.3.55Affected
  • 9.18.3.56Affected
  • 9.18.4Affected
  • 9.18.4.5Affected
  • 9.18.4.8Affected
  • 9.18.4.22Affected
  • 9.18.4.24Affected
  • 9.18.4.29Affected
  • 9.18.4.34Affected
  • 9.18.4.40Affected
  • 9.18.4.47Affected
  • 9.18.4.50Affected
  • 9.18.4.52Affected
  • 9.18.4.53Affected
  • 9.18.4.57Affected
  • and 32 more versions
Cisco Secure Firewall Threat Defense (FTD) SoftwareCisco
  • 7.2.0Affected
  • 7.2.0.1Affected
  • 7.2.1Affected
  • 7.2.2Affected
  • 7.2.3Affected
  • 7.2.4Affected
  • 7.2.4.1Affected
  • 7.2.5Affected
  • 7.2.5.1Affected
  • 7.2.6Affected
  • 7.2.7Affected
  • 7.2.5.2Affected
  • 7.2.8Affected
  • 7.2.8.1Affected
  • 7.2.9Affected
  • 7.2.10Affected
  • 7.2.10.2Affected
  • 7.3.0Affected
  • 7.3.1Affected
  • 7.3.1.1Affected
  • 7.3.1.2Affected
  • 7.4.0Affected
  • 7.4.1Affected
  • 7.4.1.1Affected
  • 7.4.2Affected
  • and 9 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.