CVE-2026-13046

A deserialization of untrusted data vulnerability in WatchGuard Fireware OS's SAML single sign-on session handling (samld) allows an attacker who has already obtained the ability to write files on the appliance to execute arbitrary code in the context of the samld service by causing samld to load a maliciously crafted session file.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://psirt.watchguard.com/CVE-2026-13046	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

08 Oct 2026, 20:01

Type	Values Removed	Values Added
CPE		cpe:2.3:o:watchguard:fireware::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.2
References	~~() https://psirt.watchguard.com/CVE-2026-13046 -~~	() https://psirt.watchguard.com/CVE-2026-13046 - 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 : 2026-10-08 20:01

NVD link : CVE-2026-13046

Mitre link : CVE-2026-13046

CVE.ORG link : CVE-2026-13046

JSON object : View

Products Affected

watchguard

fireware

CWE

CWE-502

Deserialization of Untrusted Data

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