THREATPORT/VULNERABILITY/CVE-2025-50989
CRITICAL SEVERITY

CVE-2025-50989

Opnsense vulnerability

CVSS
9.1
EPSS
8.0%
EPSS pct
94th
Exploited
No known
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.
Affected vendor
Opnsense
Affected product
Opnsense
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness type (CWE)
Published
2025-08-27

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring high privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 8.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2025-50989

  • Confirm whether Opnsense Opnsense is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2025-50989.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-50989

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2025-50989 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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