A NULL pointer dereference vulnerability in the WatchGuard Fireware OS authentication process allows a remote, unauthenticated attacker to crash the… (CVE-2026-86134)
A NULL pointer dereference vulnerability exists in the WatchGuard Fireware OS authentication process. This flaw allows a remote, unauthenticated attacker to send a specially crafted request to the login interface, causing the management daemon to crash and resulting in a denial of service condition.
AI Analysis
Technical Summary
CVE-2026-86134 describes a vulnerability in WatchGuard Fireware OS where the authentication process improperly handles a NULL pointer. An attacker without any authentication can exploit this by sending a crafted request to the login interface, triggering a crash of the management daemon and causing denial of service.
Potential Impact
The vulnerability enables remote denial of service by crashing the management daemon. There is no indication of privilege escalation, data disclosure, or code execution. The attack requires no authentication and can disrupt availability of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided at this time.
A NULL pointer dereference vulnerability in the WatchGuard Fireware OS authentication process allows a remote, unauthenticated attacker to crash the… (CVE-2026-86134)
Description
A NULL pointer dereference vulnerability exists in the WatchGuard Fireware OS authentication process. This flaw allows a remote, unauthenticated attacker to send a specially crafted request to the login interface, causing the management daemon to crash and resulting in a denial of service condition.
CVSS v4.0
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-86134 describes a vulnerability in WatchGuard Fireware OS where the authentication process improperly handles a NULL pointer. An attacker without any authentication can exploit this by sending a crafted request to the login interface, triggering a crash of the management daemon and causing denial of service.
Potential Impact
The vulnerability enables remote denial of service by crashing the management daemon. There is no indication of privilege escalation, data disclosure, or code execution. The attack requires no authentication and can disrupt availability of the affected system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided at this time.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-fhvg-p495-phcg
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-86134"]
- Database Specific Severity
- HIGH
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abcddd70df196e1a9da6f05
Added to database: 09/30/2026, 10:00:55 UTC
Last enriched: 09/30/2026, 10:12:07 UTC
Last updated: 09/30/2026, 13:04:25 UTC
Views: 5
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