CVE-2026-20025
Published: Mar 4, 2026
Modified: Mar 4, 2026
CVSS v3.1
6.8
Description
A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF secret key. This vulnerability is due to insufficient input validation when processing OSPF link-state update (LSU) packets. An attacker could exploit this vulnerability by sending crafted OSPF LSU packets. A successful exploit could allow the attacker to corrupt the heap, causing the device to reload, resulting in a DoS condition.
| Vendor | Product | Versions |
|---|---|---|
Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | affected 9.12.1affected 9.12.1.2affected 9.12.1.3affected 9.12.2affected 9.12.2.4+151 more versions |
Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | affected 6.4.0affected 6.4.0.1affected 6.4.0.3affected 6.4.0.2affected 6.4.0.4+70 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now