CVE-2025-50989
criticalpriority · track · 4EPSS 0.109 · 96 %ileEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.8–9.1
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://github.com/4rdr/proofs/blob/main/info/OPNsense-25.1-Command-Injection-via-span-parameter.mdcnnvd
- https://github.com/opnsense/changelog/blob/640e96ed6a783254283aead0d0b744fc9143ce6d/community/25.1/25.1.8#L34cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2025-50989cnnvd
- https://opnsense.org/download/Patchcnnvd
- https://github.com/4rdr/proofs/blob/main/info/OPNsense-25.1-Command-Injection-via-span-parameter.mdenisa_euvd
- https://github.com/opnsense/changelog/blob/640e96ed6a783254283aead0d0b744fc9143ce6d/community/25.1/25.1.8#L34enisa_euvd
- https://github.com/4rdr/proofs/blob/main/info/OPNsense-25.1-Command-Injection-via-span-parameter.mdExploitThird Party Advisorynvd
- https://github.com/opnsense/changelog/blob/640e96ed6a783254283aead0d0b744fc9143ce6d/community/25.1/25.1.8#L34Productnvd
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