CVE-2026-18105

EUVD-2026-89493
An uncontrolled resource consumption vulnerability in Fireware OS's diagnostic tasks feature allows a low-privileged, authenticated user to cause a denial of service of the system's diagnostic tools by repeatedly starting and aborting a specially crafted diagnostic task through the web UI.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 15.23%
Affected Products (NVD)
VendorProductVersion
watchguardfireware
12.0 ≤
𝑥
< 12.5.21
watchguardfireware
12.12 ≤
𝑥
< 12.12.3
watchguardfireware
2025.0 ≤
𝑥
< 2026.2.3
watchguardfireware
2026.3 ≤
𝑥
< 2026.3.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://psirt.watchguard.com/CVE-2026-18105