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CVE-2025-50989

Opnsense remote code execution

9.1 CRITICALPublic exploitEPSS 9.04%
  1. Published27 Aug 2025

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected products

Opnsense< 25.1.8

Remediation

Fixed in
Opnsense≥ 25.1.8

References

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Frequently asked

Is CVE-2025-50989 being actively exploited?

CVE-2025-50989 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 9.04%.

How severe is CVE-2025-50989?

CVE-2025-50989 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 9.04% probability of exploitation.

Which products are affected by CVE-2025-50989?

Affected products include Opnsense.

How do I fix CVE-2025-50989?

Upgrade affected software to a fixed version, for example Opnsense 25.1.8 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-50989 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.