ClosedPatched

WatchGuard Firebox: Firebox Out-of-Bounds Write Vulnerability

WatchGuard Firebox

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. Added to CISA KEV on 2025-11-12.

Why this severity: CVSS 9.3 (CNA, v4.0); actively exploited (CISA KEV)

Started: Nov 12, 2025
Closed: Nov 12, 2025
CVE: CVE-2025-9242

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Updated Nov 12, 2025

Affected

See vendor advisory / CISA notes (versions not always listed in KEV feed)

Fixed in

See vendor advisory linked in sources

Timeline1

Nov 12, 2025
CISA added CVE-2025-9242 to the KEV catalog (due 2025-12-03).

Advisories3

Notes & caveats

Derived from CISA KEV JSON feed catalogVersion 2026.10.21. CVSS from the CVE record (cvelistV5). Exact affected/fixed version strings are not always in the KEV record; verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier; many entries are older CVEs newly confirmed as exploited in 2025).

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