TeamViewer urges users to patch severe flaws “as soon as possible”
TeamViewer has disclosed multiple high-severity vulnerabilities affecting its Full Client and Host software on Windows, Linux, and macOS. The most critical flaw is a remote session access control bypass (CVE-2026-92370) that could allow unauthorized remote code execution. Additional issues include path traversal, heap-based buffer overflow, TOCTOU race condition, and improper path validation vulnerabilities that may enable local attackers to execute code remotely or escalate privileges. TeamViewer urges users to update to version 15.82, which addresses these flaws. No evidence of active exploitation or public exploit code is currently known.
AI Analysis
Technical Summary
TeamViewer announced a set of high-severity vulnerabilities impacting its remote access software clients and hosts across major operating systems. The primary vulnerability (CVE-2026-92370) involves an improper access control weakness enabling remote session access control bypass and potential remote code execution. Other vulnerabilities include CVE-2026-19743 (path traversal), CVE-2026-92368 (heap-based buffer overflow), CVE-2026-92369 (TOCTOU race condition), and CVE-2026-92371 (improper path validation). These issues could allow attackers to execute code remotely with user privileges or escalate to SYSTEM/root. TeamViewer has released version 15.82 and related maintenance and legacy releases to fix these vulnerabilities. The company has not observed active exploitation or public exploit availability.
Potential Impact
Successful exploitation of these vulnerabilities could allow remote attackers to bypass access controls, execute arbitrary code remotely, and local attackers to escalate privileges to SYSTEM/root. This could lead to unauthorized control over affected systems, potentially compromising confidentiality, integrity, and availability. However, there is currently no evidence of active exploitation or public exploit code in the wild.
Mitigation Recommendations
TeamViewer has released security updates in version 15.82 and supported maintenance and legacy releases that address these vulnerabilities. Users are strongly advised to update to the latest version immediately. There is no indication that additional mitigation steps are required beyond applying the official patches.
TeamViewer urges users to patch severe flaws “as soon as possible”
Description
TeamViewer has disclosed multiple high-severity vulnerabilities affecting its Full Client and Host software on Windows, Linux, and macOS. The most critical flaw is a remote session access control bypass (CVE-2026-92370) that could allow unauthorized remote code execution. Additional issues include path traversal, heap-based buffer overflow, TOCTOU race condition, and improper path validation vulnerabilities that may enable local attackers to execute code remotely or escalate privileges. TeamViewer urges users to update to version 15.82, which addresses these flaws. No evidence of active exploitation or public exploit code is currently known.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
TeamViewer announced a set of high-severity vulnerabilities impacting its remote access software clients and hosts across major operating systems. The primary vulnerability (CVE-2026-92370) involves an improper access control weakness enabling remote session access control bypass and potential remote code execution. Other vulnerabilities include CVE-2026-19743 (path traversal), CVE-2026-92368 (heap-based buffer overflow), CVE-2026-92369 (TOCTOU race condition), and CVE-2026-92371 (improper path validation). These issues could allow attackers to execute code remotely with user privileges or escalate to SYSTEM/root. TeamViewer has released version 15.82 and related maintenance and legacy releases to fix these vulnerabilities. The company has not observed active exploitation or public exploit availability.
Potential Impact
Successful exploitation of these vulnerabilities could allow remote attackers to bypass access controls, execute arbitrary code remotely, and local attackers to escalate privileges to SYSTEM/root. This could lead to unauthorized control over affected systems, potentially compromising confidentiality, integrity, and availability. However, there is currently no evidence of active exploitation or public exploit code in the wild.
Mitigation Recommendations
TeamViewer has released security updates in version 15.82 and supported maintenance and legacy releases that address these vulnerabilities. Users are strongly advised to update to the latest version immediately. There is no indication that additional mitigation steps are required beyond applying the official patches.
Technical Details
- Classification
- {"confidence":0.78,"severitySource":"stated","classifier":"rss-v2"}
- Article Source
- {"url":"https://www.bleepingcomputer.com/news/security/teamviewer-urges-users-to-patch-severe-flaws-as-soon-as-possible/","fetched":true,"fetchedAt":"2026-09-30T12:27:25.559Z","wordCount":681}
Threat ID: 6abd002d0df196e1a9ff72e7
Added to database: 09/30/2026, 12:27:25 UTC
Last enriched: 09/30/2026, 12:27:31 UTC
Last updated: 09/30/2026, 12:27:31 UTC
Views: 1
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