WatchGuard TechnologiesCVE-2026-101891

WatchGuard AP: improper access control

Critical9.3CVE-2026-101891 · Published Sep 28, 2026

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.

WatchGuard Technologies advisory

Affected versions

Package	Affected	Fixed in
WatchGuard AP Product	>= 1.0, < 3.4.8	3.4.8

Details and references

CVSS 4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity from: the vendor (its own CVE record or advisory)
Weakness: CWE-284, CWE-923

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All WatchGuard Technologies

Date	Advisory	Severity	Fixed in
Sep 30	WatchGuard Technologies Fireware OS: integer overflow High8.2Sep 30 CVE-2026-861322026.3.2+3 more	High8.2	2026.3.2+3 more
Sep 30	WatchGuard Technologies Fireware OS: resource exhaustion High7.1Sep 30 CVE-2026-181052026.3.2+3 more	High7.1	2026.3.2+3 more
Sep 30	WatchGuard Technologies Fireware OS: path traversal High8.2Sep 30 CVE-2026-1322412.5.21+3 more	High8.2	12.5.21+3 more
Sep 30	WatchGuard Technologies Fireware OS: unsafe deserialization High7.5Sep 30 CVE-2026-130462026.3.2+3 more	High7.5	2026.3.2+3 more
Sep 28	WatchGuard AP: command injection Critical9.3Sep 28 CVE-2026-861023.4.8	Critical9.3	3.4.8
Sep 28	WatchGuard AP: command injection High8.6Sep 28 CVE-2026-879693.4.8	High8.6	3.4.8

Affected versions

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