CVE-2026-19315: CWE-125 in WatchGuard Fireware OS
Description
CVE-2026-19315 is a critical type confusion vulnerability in the iked process of WatchGuard Fireware OS. It allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic. The vulnerability affects multiple versions of Fireware OS, including 2025.0, 12.0, and 2026.3. No patch or official fix information is currently provided. The vulnerability has a high CVSS 4.0 score of 9.3, indicating critical severity. There are no known exploits in the wild at this time.
CVSS v4.0
Score 9.3critical
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-19315) is a type confusion flaw in the iked process of WatchGuard Fireware OS. It enables remote unauthenticated attackers to execute arbitrary code by sending specially crafted network traffic. The CVSS 4.0 vector indicates the attack requires no privileges, no user interaction, and has high impact on confidentiality, integrity, and availability. Affected versions explicitly include 2025.0, 12.0, and 2026.3. No patch or remediation details are currently available from the vendor or advisory sources.
Potential Impact
Successful exploitation allows remote unauthenticated attackers to execute arbitrary code on affected Fireware OS devices, potentially leading to full system compromise. The vulnerability impacts confidentiality, integrity, and availability with high severity. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, limit exposure by restricting network access to the iked process if possible. Monitor official WatchGuard advisories for updates and apply patches promptly once released.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-mv65-j857-xm58
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-19315"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a91a7d5acd9273b490657be
Added to database: 08/28/2026, 15:23:01 UTC
Last enriched: 09/08/2026, 06:07:29 UTC
Last updated: 10/11/2026, 18:48:17 UTC
Views: 77
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