CVE Watch—

CVE-2025-9242

WatchGuard Firebox Out-of-Bounds Write Vulnerability

CVSS

—

No CVSS

EPSS

86.4%

p100

KEV

YES

Nov 12, 2025

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

86.4%EPSS · 30 days86.4%

2026-06-302026-07-16

KEV catalog record

Product

WatchGuard / Firebox

Vulnerability

WatchGuard Firebox Out-of-Bounds Write Vulnerability

Added to KEV

Nov 12, 2025

Remediate by

Dec 3, 2025

Known ransomware use

Summary description

WatchGuard Firebox contains an out-of-bounds write vulnerability in the OS iked process that may allow a remote unauthenticated attacker to execute arbitrary code.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00015 ; https://nvd.nist.gov/vuln/detail/CVE-2025-9242

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KEV—79WatchGuard Firebox Out of Bounds Write Vulnerability—