CVE-2025-9242 — WatchGuard Firebox Out-of-Bounds Write Vulnerability
CVE-2025-9242: WatchGuard Firebox Out-of-Bounds Write Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | WatchGuard |
| Product | Firebox |
| Date added | 2025-11-12 |
| Due date | 2025-12-03 |
| Ransomware campaign use | Unknown |
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 (CISA)
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
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-9242
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog