by Kastro
Paper/Archive/CVE-2026-101891

CVE-2026-101891

WatchGuard WatchGuard AP — WatchGuard AP Improper Access Control in API Service Allows Unauthenticated Access

EPSS 0.3%CVSS 9.3
critical.is priorityof 100
33
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 24.2.242 × 204.8No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

An improper access control vulnerability in an internal API service on WatchGuard Access Points allows an unauthenticated attacker with network access to the AP to obtain a valid API session.

Affected

ProductAffectedFixed inSource
WatchGuard AP1.0 – < 3.4.83.4.8CNA

Scores by source

WatchGuard (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisorypsirt.watchguard.com/CVE-2026-101891