CVE-2025-15311

Tanium addressed an unauthorized code execution vulnerability in Tanium Appliance.

HIGH
7.8
CVSS Score
Published: February 5, 2026 at 06:26 PM UTC
Updated: June 17, 2026 at 08:37 AM UTC
2 products affected across 1 vendorTanOSTanium Appliance

Using Tanium Appliance by Tanium?

Get instant alerts when new vulnerabilities affect Tanium Appliance - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Tanium addressed an unauthorized code execution vulnerability in Tanium Appliance.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.8.3.0146
1.8.3.0 ≤ v < 1.8.3.01461.8.4.0 ≤ v < 1.8.4.01491.8.5.0 ≤ v < 1.8.5.02121.8.3.01.8.4.01.8.5.0
Affected range stops below 1.8.3.0146, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.8.4.0149, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.8.5.0212, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://security.tanium.com/TAN-2025-002

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHTanium
Vector?

Quick Info

StatusANALYZED
CWE
CWE-150

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card