NetSight
high7.2

CVE-2026-18145

A stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS allows an authenticated attacker with administrator pr…

Impact

A stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS allows an authenticated attacker with administrator privileges to crash the service or potentially execute arbitrary code by sending a specially crafted management request.

Affected products

VendorProductAffected versions
WatchguardFireware
from 12.0 before 12.5.21
from 12.12 before 12.12.3
from 2025.2 before 2026.2.3
from 2026.3 before 2026.3.2

Weakness classification

References