Incorrect authorization in OPNsense - #VU136831
Published: July 3, 2026 / Updated: July 3, 2026
Vulnerability identifier: #VU136831
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: N/A
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Deciso
Affected software:
OPNsense
OPNsense
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to the error within interaction between "OPNsense\Core\ACL::hasPrivilege()" and MVC API "throwReadOnly()" checks. A remote user can bypass intended access restrictions and modify configuration.
Remediation
Install updates from vendor's website.