CVE-2019-11816

7.2 HIGH 3% exploit odds Fix listed

What it is

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.

At a glance

Exploitability: Can be exploited over the network with an admin-level account. High risk of data exposure, data tampering, service disruption.
Exploit odds: 3.2% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2019-05-20 22:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:13 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.2% in the next 30 days (EPSS).
Severity: 7.2 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2019-05-20 22:29 UTC
Last modified: 2026-06-17 02:13 UTC
Exploit probability: 3.2% · EPSS, next 30 days
Record status: Modified

Affected

Netgate Pfsense ≤ 2.4.4
Netgate Pfsense 2.4.4
Opnsense < 19.1.8

Attack profile CVSS 3.1 · 7.2

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2019-11816.md and follow it. Check whether this project is affected by CVE-2019-11816. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record