Auth bypass in Pritunl Pritunl-Client

CVE-2025-43917

In Pritunl Client before 1.3.4220.57, an administrator with access to /Applications can escalate privileges after uninstalling the product. Specifically, an administrator can insert a new file at the pathname of the removed pritunl-service file. This file then is executed by a LaunchDaemon as root.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (5.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-43917: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-43917?
CVE-2025-43917 is a high-severity vulnerability in Pritunl Pritunl-Client, classified under Incorrect Authorization. CVSS score: 8.2/10. Published 2025-04-19.
How severe is CVE-2025-43917?
High severity. CVSS v3 base score is 8.2 out of 10.