What is CVE-2025-15322?

CVE-2025-15322 is a medium-severity vulnerability in Tanium Server, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-01-30.

How severe is CVE-2025-15322?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Tanium Server

CVE-2025-15322

Tanium addressed an improper access controls vulnerability in Tanium Server.

Vulnerability class: Broken Access Control

Published 2026-01-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (18.0th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Tanium Server
Tanium Server — versions 7.6.2.0, 7.6.4.0, 7.7.3.0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

3938794e-25f5-4123-a1ba-5cbd7f104512 (Vendor Advisory)

Frequently asked questions

What is CVE-2025-15322?: CVE-2025-15322 is a medium-severity vulnerability in Tanium Server, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-01-30.
How severe is CVE-2025-15322?: Medium severity. CVSS v3 base score is 4.3 out of 10.