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CVE-2026-86131

Fireware OS Code Injection in BOVPN Over TLS Client Allows Remote Code Execution

Published
Last modified
Status
published
Known exploitation
Not listed in CISA KEV
Fix
Fixed in 2026.3.2, 2026.2.3, 12.12.3, 12.5.21
Public exploit
None on Exploit-DB
CISA SSVC
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total
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Decision points from CISA's Vulnrichment, assessed (SSVC 2.0.3).

SSVC documentation

Summary

A code injection vulnerability in WatchGuard Fireware OS's BOVPN Over TLS client configuration handling allows an attacker who controls the remote VPN server to execute arbitrary commands as root on the connecting Firebox.

Affected versions

  • WatchGuard Fireware OS

    From 2026.3 · fixed in 2026.3.2; From 2025.0 · fixed in 2026.2.3; From 12.0 · fixed in 12.12.3

  • WatchGuard Fireware OS

    From 12.0 · fixed in 12.5.21

References 1

psirt.watchguard.com