What is CVE-2019-11816?

CVE-2019-11816 is a high-severity vulnerability in Netgate Pfsense. CVSS score: 7.2/10. Published 2019-05-20.

How severe is CVE-2019-11816?

High severity. CVSS v3 base score is 7.2 out of 10.

Vulnerability in Netgate Pfsense

CVE-2019-11816

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.

Published 2019-05-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.032 (88.1th percentile), scored 2026-10-29.

Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000

Affected products

Netgate Pfsense — versions 2.4.4
Opnsense

References

forum.opnsense.org/index.php (Release Notes, Vendor Advisory)
www.netgate.com/blog/pfsense-2-4-4-release-p3-now-available.html (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2019-11816?: CVE-2019-11816 is a high-severity vulnerability in Netgate Pfsense. CVSS score: 7.2/10. Published 2019-05-20.
How severe is CVE-2019-11816?: High severity. CVSS v3 base score is 7.2 out of 10.