CVE-2026-20022

score

<0.1

cvss

6.1

epss

0.2%

published

2026-03-04

kev added

—

first seen

2026-10-21

Cisco Secure Firewall ASA Software and Cisco Secure FTD Software contain a denial of service vulnerability caused by insufficient input validation in OSPF LSU packet processing, letting unauthenticated adjacent attackers cause device reloads when OSPF canonicalization debug is enabled, exploit requires debug ip ospf canon enabled.