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CVE

CVE-2026-44194

OPNsense: RCE on user managment
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CVE

CVE-2026-44194

OPNsense: RCE on user managment

OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.8, an authenticated Remote Code Execution (RCE) vulnerability in the OPNsense core allows a user with user-management privileges to execute arbitrary system commands as root. An attacker can bypass input validation by formatting their malicious payload as a compliant email address, allowing shell commands to reach the underlying operating system. The flaw exists in the local user synchronization flow, within core/src/opnsense/scripts/auth/sync_user.php. This vulnerability is fixed in 26.1.8.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44194.json, https://github.com/opnsense/core/security/advisories/GHSA-f59w-m967-9rf6, https://nvd.nist.gov/vuln/detail/CVE-2026-44194

Severity

9.1

CVSS Score
0
10

Basic Information

Base CVSS
9.1
EPSS Probability
0.06355%
EPSS Percentile
0.93102%
Introduced Version
0
Fix Available
76ed1ef85a4bbcfc9cb1a2331e63a01e4f1e44fd

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