CVE-2026-86131Fireware OS Code Injection in BOVPN Over TLS Client Allows Remote Code Execution
Updated under an hour ago ()
Does this affect you?
It affects WatchGuard Fireware OS and 1 other product. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.42%, higher than 34% of scored CVEs.
Do this next
Free account, 1 product
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.
- CVSS
- 9.2 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-295, CWE-829, CWE-94
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.42% (percentile 34)
- Assigned by
- WatchGuard
- NVD analysis
- Analyzed
- Record last updated
- Oct 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
WatchGuard Fireware OS watchguard:fireware_os (from the name) | from 2026.3 before 2026.3.2; from 2025.0 before 2026.2.3; from 12.0 before 12.12.3 | CNA record |
watchguard fireware watchguard:fireware | from 12.0 before 12.5.21; from 12.12 before 12.12.3; from 2025.0 before 2026.2.3; from 2026.3 before 2026.3.2 | NVD |
References
- https://psirt.watchguard.com/CVE-2026-86131vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.