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VulnerabilityPublished

CVE-2025-64994: TeamViewer DEX · Uncontrolled Search Path Element

Affects TeamViewer DEXSource CVE Database V5

0

Not known to be exploited · CVSS 6.5 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
TeamViewer DEXAffected
  • =0
Fixed in–

AI-suggested

  1. Immediately audit and restrict write permissions on all directories included in the system PATH environment variable to prevent unauthorized modification.
  2. Implement strict endpoint security policies that limit local user privileges, ensuring that only trusted administrators have write access to critical system paths.
  3. Monitor filesystem changes and employ integrity checking tools to detect unauthorized additions or modifications to executables in PATH directories.
  4. Enforce application whitelisting to prevent execution of unapproved binaries, especially in directories accessible to multiple users.
  5. Educate users about the risks of executing untrusted code and the importance of reporting suspicious activity.
  6. Maintain up-to-date backups and incident response plans to mitigate potential damage from exploitation.
  7. Once available, promptly apply official patches or updates from TeamViewer addressing this vulnerability.
  8. Consider isolating or segmenting systems running TeamViewer DEX to limit lateral movement in case of compromise.

Description

A privilege escalation vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Nomad-SetWorkRate instruction prior V17.1. The improper handling of executable search paths could allow local attackers with write access to a PATH directory on a device to escalate privileges and execute arbitrary code as SYSTEM.

References

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