CVE-2026-20023 - Cisco OSPF Protocol Memory Corruption Denial of Service Vulnerability

CVE ID : CVE-2026-20023 Published : March 4, 2026, 7:16 p.m. | 1 hour, 29 minutes ago Description : A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to corrupt memory on an affected device, resulting in a denial of service (DoS) condition. This vulnerability is due to memory corruption when parsing OSPF protocol packets. An attacker could exploit this vulnerability by sending crafted OSPF packets to an affected device. A successful exploit could allow the attacker to cause memory corruption causing the affected device to reboot, resulting in a DoS condition. Severity: 6.1 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...