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Public proof of conceptFix available

CVE-2025-50989

A public proof of concept exists; no exploitation attested.

  • Published2025-08-27
  • Fixed in25.1.8
  • WeaknessCWE-77 · CWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

OPNsense before 25.1.8 contains an authenticated command injection vulnerability in its Bridge Interface Edit endpoint (interfaces_bridge_edit.php). The span POST parameter is concatenated into a system-level command without proper sanitization or escaping, allowing an administrator to inject arbitrary shell operators and payloads. Successful exploitation results in remote code execution with the privileges of the web service (typically root), potentially leading to full system compromise or lateral movement. This vulnerability arises from inadequate input validation and improper handling of user-supplied data in backend command invocations.

Timeline

dates in UTC
  1. 2025-08-2715:15CVE publishedNVD

Versions per branch

NVD
Opnsense
BranchAffectedFixed in
25.1< 25.1.825.1.8

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As mitre, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • OPNsenseother versions: not affected
    Affected
    • < 25.1.8fixed in 25.1.8custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-09-12

Fix

  1. Update Opnsense to 25.1.8

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Published
2025-08-27
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-qf7f-cgq3-xfvh

Frequently asked questions

What is CVE-2025-50989?

OPNsense before 25.1.8 contains an authenticated command injection vulnerability in its Bridge Interface Edit endpoint (interfaces_bridge_edit.php). The span POST parameter is concatenated into a system-level command without proper sanitization or escaping, allowing an administrator to inject arbitrary shell operators and payloads. Successful exploitation results in remote code execution with the privileges of the web service (typically root), potentially leading to full system compromise or lateral movement. This vulnerability arises from inadequate input validation and improper handling of user-supplied data in backend command invocations.

Is CVE-2025-50989 actively exploited?

A proof-of-concept exploit exists for CVE-2025-50989, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-50989?

CVE-2025-50989 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

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