CVE-2023-20081

score

<0.1

cvss

6.8

epss

0.7%

published

2023-03-23

kev added

—

first seen

2026-10-21

Cisco ASA, FTD, IOS, and IOS XE Software contain a denial of service caused by insufficient validation of DHCPv6 messages, letting unauthenticated remote attackers cause device reload, exploit requires control over DHCPv6 server or man-in-the-middle position.