CVE-2026-14505Network attack vector

Arbitrary file write via path traversal

Published Sep 9, 2026 · Updated Sep 9, 2026

Path traversal in Tanium Data Service 4.2 before 4.2.345 allows remote authenticated users to write arbitrary Module Server files. Tanium has not disclosed the affected request handler or how attacker-controlled paths escape the intended directory. Exploitation requires the Data Collection Pipeline Write Override permission and permits overwriting files accessible to the service.

CVSS severity6.6
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Tanium Data Service 4.2 before 4.2.345 allows remote authenticated users to write arbitrary Module Server files. Tanium has not disclosed the affected request handler or how attacker-controlled paths escape the intended directory. Exploitation requires the Data Collection Pipeline Write Override permission and permits overwriting files accessible to the service.

The record

CVE
CVE-2026-14505
Published
Sep 9, 2026
Updated
Sep 9, 2026
Vendor
Tanium
Product
Tanium Data Service
Classifications
CWE-22, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.2 <4.2.345

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tanium · Tanium Data Serviceversion=4.2 <4.2.345

Published CVSS scores

6.6TaniumCVSS:3.1/AV:N/AC:H/PR:H/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.

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No observations available

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

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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