CVE-2026-20023

score

<0.1

cvss

6.1

epss

0.2%

published

2026-03-04

kev added

—

first seen

2026-10-21

Cisco Secure Firewall ASA and FTD Software contain a denial of service vulnerability caused by memory corruption when parsing OSPF protocol packets, letting unauthenticated adjacent attackers cause device reboot, exploit requires sending crafted OSPF packets.