PT-2026-22971 · Cisco · Cisco Secure Firewall Asa+1

Jason Crowder · Published 2026-03-04 · Updated 2026-03-04 · CVE-2026-20013

Positive Technologies (AI Summary)

CVSS v3.1

5.8

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall ASA Software and Cisco Secure FTD Software (affected versions not specified)

Description A flaw exists in the IKEv2 feature that may allow a remote, unauthenticated attacker to trigger a denial-of-service (DoS) condition on a vulnerable device. This could also impact the availability of services to other devices on the network. The issue stems from a failure to release memory during IKEv2 packet processing, leading to memory exhaustion when crafted IKEv2 packets are sent to the device. A successful exploit could exhaust system resources, resulting in a DoS condition that requires manual device reloading.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2026-20013

Affected Products

Cisco Secure Ftd

Cisco Secure Firewall Asa

References · 4

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-eBueGdEG · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-20013 · Security Note
• https://twitter.com/CVEnew/status/2029272804219109554 · Twitter Post
• https://t.me/CVEtracker/46338 · Telegram Post