#VU123662 Input validation error in Cisco Adaptive Security Appliance (ASA) and Cisco Firewall Threat Defense (FTD) - CVE-2026-20025

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU123662

#VU123662 Input validation error in Cisco Adaptive Security Appliance (ASA) and Cisco Firewall Threat Defense (FTD) - CVE-2026-20025

Published: March 10, 2026


Vulnerability identifier: #VU123662
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-20025
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
Cisco Adaptive Security Appliance (ASA)
Cisco Firewall Threat Defense (FTD)
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when processing OSPF link-state update (LSU) packets. A remote user with OSPF secret key can send specially crafted OSPF LSU packets to the device and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links