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CVE PROGRAM SOURCE RECORD5.8 Medium

CVE-2026-20015

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

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Status
Published
Published
Updated
Assigning organization
cisco

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Cisco Cisco Secure Firewall Adaptive Security Appliance (ASA) Software

  • 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
  • 9.19.1affected
  • 9.19.1.5affected
  • 9.19.1.9affected
  • 9.19.1.12affected
  • 9.19.1.18affected
  • 9.19.1.22affected
  • 9.19.1.24affected
  • 9.19.1.27affected
  • 9.19.1.28affected
  • 9.19.1.31affected
  • 9.19.1.37affected
  • 9.19.1.38affected
  • 9.19.1.42affected
  • 9.20.1affected
  • 9.20.1.5affected
  • 9.20.2affected
  • 9.20.2.10affected
  • 9.20.2.21affected
  • 9.20.2.22affected
  • 9.20.3affected
  • 9.20.3.4affected
  • 9.20.3.7affected
  • 9.20.3.9affected
  • 9.20.3.10affected
  • 9.20.3.13affected
  • 9.20.3.16affected
  • 9.22.1.1affected
  • 9.22.1.3affected
  • 9.22.1.2affected
  • 9.22.1.6affected
  • 9.22.2affected
  • 9.23.1affected

Cisco Cisco Secure Firewall Threat Defense (FTD) Software

  • 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
  • 7.4.2.1affected
  • 7.4.2.2affected
  • 7.4.2.3affected
  • 7.4.2.4affected
  • 7.6.0affected
  • 7.6.1affected
  • 7.6.2affected
  • 7.6.2.1affected
  • 7.7.0affected

References