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CVE-2026-86131 Details
Description
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
CNA: WatchGuard Technologies, Inc.CVSS-B:9.2 CRITICALVector: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
CVSS 3.x Severity and Vector Strings:
No CVSS 3.x data is available for this CVE.
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 30, 2026Exploitation: NoneAutomatable: YesTechnical Impact: Total
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://psirt.watchguard.com/CVE-2026-86131 | WatchGuard Technologies, Inc. |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-295 | Improper Certificate Validation | WatchGuard Technologies, Inc. |
| CWE-829 | Inclusion of Functionality from Untrusted Control Sphere | WatchGuard Technologies, Inc. |
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | WatchGuard Technologies, Inc. |
Affected Products
No affected product data is available for this CVE.
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 1, 2026 | CVE Modified | CISA-ADP |
| Sep 30, 2026 | CVE Modified | CISA-ADP |
| Sep 30, 2026 | New CVE Received | WatchGuard Technologies, Inc. |