CVE-2025-64994

SYSTEM code execution via uncontrolled PATH search

Published Dec 11, 2025 · Updated Dec 11, 2025

Uncontrolled search paths in TeamViewer DEX before 17.1 allow local users to execute arbitrary code with SYSTEM privileges. The 1E-Nomad-SetWorkRate instruction resolves an executable through a PATH directory that a local user can write, causing attacker-supplied code to be selected. Exploitation requires local access, write permission to a searched PATH directory, and execution of the affected instruction; successful abuse grants full SYSTEM code execution.

CVSS severity6.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled search paths in TeamViewer DEX before 17.1 allow local users to execute arbitrary code with SYSTEM privileges. The 1E-Nomad-SetWorkRate instruction resolves an executable through a PATH directory that a local user can write, causing attacker-supplied code to be selected. Exploitation requires local access, write permission to a searched PATH directory, and execution of the affected instruction; successful abuse grants full SYSTEM code execution.

The record

CVE
CVE-2025-64994
Published
Dec 11, 2025
Updated
Dec 11, 2025
Vendor
TeamViewer
Product
TeamViewer DEX
Classifications
CWE-427, T1574.007
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 11, 2025Record 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=0 <17.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

TeamViewer · TeamViewer DEXversion=0 <17.1

Published CVSS scores

6.7NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.5TeamViewer Germany GmbHCVSS:3.1/AV:L/AC:L/PR:H/UI:R/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-427Uncontrolled Search Path Element
T1574.007Path Interception by PATH Environment Variable

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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