Exploited vulnerability

CVE-2025-9242

TLP:CLEAR

WatchGuard Firebox Out-of-Bounds Write Vulnerability

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.

Facts

Vendor: WatchGuard
Product: Firebox
CVSS: 9.3
EPSS (probability of exploitation within 30 days): 92.2 %
On CISA's Known Exploited Vulnerabilities list since: 12 November 2025
First known exploitation: 12 November 2025
CISA's deadline for US federal agencies: 3 December 2025
Weakness: CWE-787
First seen by Risk Letters: 12 November 2025

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD