What’s Vulnerable › Vulnerabilities

CVE-2026-101891: WatchGuard AP Improper Access Control in API Service Allows Unauthenticated Access

• Severity: critical (CVSS 9.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-28 · updated 2026-09-28
• Weakness: CWE-284

Description

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 products

• WatchGuard AP: from 1.0 before 3.4.8 — fixed in 3.4.8

How to fix

Upgrade to a fixed version: WatchGuard AP 3.4.8. Check the vendor advisory for mitigations.

References

• https://psirt.watchguard.com/CVE-2026-101891

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