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High · CVSS 7.8CVE-2026-92377

Local Privilege Escalation via DLL Sideloading in TeamViewer Patch Management for WindowsCVE-2026-92377

Answer in brief

CVE-2026-92377 records a High severity (CVSS 7.8) vulnerability in Local Privilege Escalation via DLL Sideloading in TeamViewer Patch Management for Windows. The current sources do not mark it as known exploited. The current feed maps TeamViewer/Full Client (generic), TeamViewer/Host (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 27, 2026Updated Oct 27, 2026Source checked Oct 27, 2026First seen by HOL Oct 27, 2026Material review Oct 27, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps TeamViewer/Full Client (generic), TeamViewer/Host (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
TeamViewer/Full Clientgeneric>=0 <15.82 || >=15.64.0 (Legacy Windows 7 & 8) <15.64.10 (Legacy Windows 7 & 8) || >=14.7.0 <14.7.48868 || >=13.2.0 <13.2.3623115.82, 15.64.10 (Legacy Windows 7 & 8), 14.7.48868, 13.2.36231, 15.64.10
TeamViewer/Hostgeneric>=0 <15.82 || >=15.64.0 (Legacy Windows 7 & 8) <15.64.10 (Legacy Windows 7 & 8) || >=14.7.0 <14.7.48868 || >=13.2.0 <13.2.3623115.82, 15.64.10 (Legacy Windows 7 & 8), 14.7.48868, 13.2.36231, 15.64.10

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for TeamViewer/Full Client, TeamViewer/Host.
  2. 2Review the reported fix. Source-reported solution: Update to the latest available version.

Evidence timeline and material changes

  1. Published upstream

    Oct 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 27, 2026

Sources and claim methodology

  • Source referenceteamviewer.com
Upstream source description

Improper access control in the Patch Management update mechanism of TeamViewer Full Client and Host for Windows prior to version 15.82 allows a local authenticated attacker with low privileges to supply a signed executable through a forged IPC response and cause it to load a malicious DLL from a user-writable temporary directory. Successful exploitation results in arbitrary code execution with NT AUTHORITY\SYSTEM privileges.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • CVE-2026-118131Also CWE-732

Record context

Vulnerability class
RCE
EPSS
Not reported
CWE IDs
CWE-732
Source
CVE List V5
Source checked
Oct 27, 2026
References
1 linked source
Open source record