CVE-2025-15311

Local authenticated code execution

Published Feb 5, 2026 · Updated Feb 5, 2026

Unauthorized code execution in affected Tanium Appliance 1.8.3, 1.8.4, and 1.8.5 builds allows local users to run code. Tanium maps the flaw to CWE-150 but does not disclose the affected component, untrusted input, or sequence that is improperly neutralized. Exploitation requires an authenticated TanOS session with the tanuser role; no unauthenticated or network-only path is reported.

CVSS severity7.8
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unauthorized code execution in affected Tanium Appliance 1.8.3, 1.8.4, and 1.8.5 builds allows local users to run code. Tanium maps the flaw to CWE-150 but does not disclose the affected component, untrusted input, or sequence that is improperly neutralized. Exploitation requires an authenticated TanOS session with the tanuser role; no unauthenticated or network-only path is reported.

The record

CVE
CVE-2025-15311
Published
Feb 5, 2026
Updated
Feb 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-150, CAPEC-93, CAPEC-41, CAPEC-134, CAPEC-81
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8TaniumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-150Improper Neutralization of Escape, Meta, or Control Sequences
CAPEC-93Log Injection-Tampering-Forging
CAPEC-41Using Meta-characters in E-mail Headers to Inject Malicious Payloads
CAPEC-134Email Injection
CAPEC-81Web Server Logs Tampering

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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