Incorrect access control in the WebUI in OPNsense before version 19.1.8, and pfsense…
Priority LOW 37Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Incorrect access control in the WebUI in OPNsense before version 19.1.8, and pfsense before 2.4.4-p3 allows remote authenticated users to escalate privileges to administrator via a specially crafted request.
Why it matters now
EPSS 0.03212 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:* | up to 2.4.4 | Vulnerable | Netgate |
| cpe:2.3:a:netgate:pfsense:2.4.4:p1:*:*:*:*:*:* | 2.4.4 p1 | Vulnerable | Netgate |
| cpe:2.3:a:netgate:pfsense:2.4.4:p2:*:*:*:*:*:* | 2.4.4 p2 | Vulnerable | Netgate |
| cpe:2.3:a:opnsense:opnsense:*:*:*:*:*:*:*:* | before 19.1.8 | Vulnerable | opnsense |
- cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:* Versions up to 2.4.4 Vulnerable ·Netgate
- cpe:2.3:a:netgate:pfsense:2.4.4:p1:*:*:*:*:*:* Versions 2.4.4 p1 Vulnerable ·Netgate
- cpe:2.3:a:netgate:pfsense:2.4.4:p2:*:*:*:*:*:* Versions 2.4.4 p2 Vulnerable ·Netgate
- cpe:2.3:a:opnsense:opnsense:*:*:*:*:*:*:*:* Versions before 19.1.8 Vulnerable ·opnsense
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-11816
- 2026-10-03 Alias added: GHSA-m83v-2qcx-3x2w
References
Sources
- CVE-2019-11816 · CVE Program
- CVE-2019-11816 · NVD
- FIRST EPSS
- GHSA-m83v-2qcx-3x2w · GitHub Advisory Database · CC BY 4.0
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