Fireware OS Missing Command Validation allows Authenticated Arbitrary File Modification as Root
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2026.4, 12.12.4, 12.5.22
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
WatchGuard Fireware OS, the operating system used on WatchGuard firewall appliances, is affected. An authenticated attacker with read-only management access can exploit a diagnostic command to create, truncate, or overwrite arbitrary files and change kernel settings with root privileges, potentially compromising the firewall.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
An external control of file path vulnerability in a WatchGuard Fireware OS firewall diagnostic command allows a remote, authenticated attacker with at least read-only (Device Monitor) privileges and access to the management CLI to create, truncate, or overwrite arbitrary files and modify kernel parameters with root privileges by submitting a specially crafted command. Written content is limited to numeric values.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- WatchGuard Fireware OS
From 2025.1 · fixed in 2026.4; From 12.0 · fixed in 12.12.4
- WatchGuard Fireware OS
From 12.0 · fixed in 12.5.22