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Fencer Vulns
high 7.8

CVE-2026-92374 json

Privilege Escalation via Insecure Package Handling in TeamViewer Full Client and Host for macOS

published 2026-10-27 13 d ago modified 2026-11-04 4 d ago also EUVD-2026-111074

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 0%
public exploits
0
none known

Summary

A time-of-check time-of-use (TOCTOU) race condition combined with improper symbolic link handling in the privileged helper of TeamViewer Full Client and Host prior to version 15.83 for macOS allows a local attacker with low privileges to bypass installer package verification and install a malicious package. Successful exploitation can lead to local privilege escalation to root.

Patch / fix

  • TeamViewer Full Client 13.2.154007, 14.7.48868, 15.83
  • TeamViewer Host 13.2.154007, 14.7.48868, 15.83

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
4 d ago

Exploit prediction

0.09% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • TeamViewer Full Client
  • TeamViewer Host

Classification

Weakness
  • CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.