CVE-2026-86105

An improper authorization vulnerability in Fireware OS's Access Portal reverse proxy allows an authenticated, low-privileged Access Portal user to access other web applications they are not authorized for by sending a specially crafted request for a different resource which they are authorized to access.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://psirt.watchguard.com/CVE-2026-86105	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:watchguard:fireware::::::::
	cpe:2.3:o:watchguard:fireware::::::::
	cpe:2.3:o:watchguard:fireware::::::::
	cpe:2.3:o:watchguard:fireware::::::::

History

06 Oct 2026, 20:47

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.1
CPE		cpe:2.3:o:watchguard:fireware::::::::
References	~~() https://psirt.watchguard.com/CVE-2026-86105 -~~	() https://psirt.watchguard.com/CVE-2026-86105 - Patch, Vendor Advisory
First Time		Watchguard Watchguard fireware

30 Sep 2026, 00:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-30 00:16

Updated : 2026-10-06 20:47

NVD link : CVE-2026-86105

Mitre link : CVE-2026-86105

CVE.ORG link : CVE-2026-86105

JSON object : View

Products Affected

watchguard

fireware

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-176

Improper Handling of Unicode Encoding

CWE-285

Improper Authorization

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