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

Quick assessment

Affected
WatchGuard WatchGuard AP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WatchGuard 接入点内部 API 服务中存在一个不正确的访问控制漏洞，允许具有网络接入权限的未认证攻击者获取有效的 API 会话。

CVSS 9.3 · Critical

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-101891

Vulnerability Information
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Vulnerability Title
WatchGuard AP Improper Access Control in API Service Allows Unauthenticated Access
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
WatchGuard WatchGuard AP 1.0 ~ 3.4.8 -

II. Public POCs for CVE-2026-101891

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III. Intelligence Information for CVE-2026-101891

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Other References for CVE-2026-101891 (1)

Same Patch Batch · WatchGuard · 2026-09-28 · 3 CVEs total

CVE-2026-86102 9.3 CRITICAL WatchGuard AP Command Injection in Internal Management API Allows Command Execution
CVE-2026-87969 8.6 HIGH WatchGuard AP Authenticated Command Injection in Diagnostic CLI

IV. Related Vulnerabilities

Same product: WatchGuard AP
Same vendor: WatchGuard
Same weakness: CWE-284

V. Comments for CVE-2026-101891

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