Vulnerability · Published Oct 27, 2026 · Assigned by WatchGuard
CVE-2026-93434Fireware OS XPath Injection in SSH Authentication Allows Blind Extraction of Configuration Secrets
High 8.7
In plain English
A high-severity improper input validation in Fireware OS from WatchGuard. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.5%top 60.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An XPath injection vulnerability in WatchGuard Fireware OS's SSH authentication process allows a remote, unauthenticated attacker with access to the management SSH interface to extract sensitive configuration data by submitting a specially crafted request.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WatchGuard | Fireware OS | 12.0 – before 12.5.22 |
| WatchGuard | Fireware OS | 2025.1 – before 2026.412.0 – before 12.12.4 |
Weakness: CWE-20, CWE-208, CWE-643 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
References
- https://psirt.watchguard.com/CVE-2026-93434 vendor-advisory