CVE-2026-86131Critical· 9.8▾ MidnightA 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.
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 53.9 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 30.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Last analysed / modified upstream
9.2 → 9.8
0.3% → 0.5%
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.
fireware >= 12.0, < 12.5.21fireware >= 12.12, < 12.12.3fireware >= 2025.0, < 2026.2.3fireware >= 2026.3, < 2026.3.2Upgrade past the affected range:
fireware 2026.3.2Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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