CVE-2026-86101

Published: Sep 30, 2026Modified: Oct 8, 2026

7.2

Vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/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

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/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:XShow less

Source: 5d1c2695-1a31-4499-88ae-e847036fd7e3 (Secondary)

Description

An improper authorization vulnerability in WatchGuard Fireware OS's SAML login process allows a remote, authenticated SAML user with access only to the Access Portal to obtain unauthorized Mobile VPN with SSL access through a specially crafted request.

Affected (4)

Products: Watchguard: Fireware

Watchguard

1 product

Fireware

Configuration A

4 vulnerable

Vulnerable Software	Affected Versions
Watchguard Fireware	12.0 ≤ version < 12.5.21
Watchguard Fireware	12.12 ≤ version < 12.12.3
Watchguard Fireware	2025.0 ≤ version < 2026.2.3
Watchguard Fireware	2026.3 ≤ version < 2026.3.2

Related CWEs

CWE-285

Improper Authorization

The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

CWE-863

Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (1)

https://psirt.watchguard.com/CVE-2026-86101

Source: 5d1c2695-1a31-4499-88ae-e847036fd7e3

PatchVendor Advisory

Timeline

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