What is CVE-2022-26019?

CVE-2022-26019 is a high-severity vulnerability in Netgate Pfsense, classified under Path Traversal. CVSS score: 8.8/10. Published 2022-03-31.

How severe is CVE-2022-26019?

High severity. CVSS v3 base score is 8.8 out of 10.

Path Traversal in Netgate Pfsense

CVE-2022-26019

Improper access control vulnerability in pfSense CE and pfSense Plus (pfSense CE software versions prior to 2.6.0 and pfSense Plus software versions prior to 22.01) allows a remote attacker with the privilege to change NTP GPS settings to rewrite existing files on the file system, which may result in arbitrary command execution.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2022-03-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.045 (91.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.045 · newest: 0.045 · change: 0.000

Affected products

Netgate Pfsense
Netgate Pfsense Plus
Pfsense Ce And Plus — versions pfSense CE software versions prior to 2.6.0 and pfSense Plus software versions prior to 22.01

Weakness classification (CWE)

CWE-22 — Path Traversal

References

jvn.jp/en/jp/JVN87751554/index.html (Patch, Third Party Advisory)
docs.netgate.com/downloads/pfSense-SA-22_01.webgui.asc (Patch, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2022-26019?: CVE-2022-26019 is a high-severity vulnerability in Netgate Pfsense, classified under Path Traversal. CVSS score: 8.8/10. Published 2022-03-31.
How severe is CVE-2022-26019?: High severity. CVSS v3 base score is 8.8 out of 10.