Heap-Based Buffer Overflow in TeamViewer Session Recording Playback Leads to Remote Code Execution
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.
Summary
TeamViewer Full Client and Host for Linux and macOS prior version 15.82 contain a heap-based buffer overflow vulnerability in the processing of .tvs session recording files. A size mismatch during decompression of recorded session data can result in out-of-bounds heap writes. By convincing a user to open a specially crafted session recording through the "Play or convert recorded session…" feature, an attacker may achieve arbitrary code execution with the privileges of the current user
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TeamViewer | Full Client | 15.70 to before 15.82 | 15.82 | Patch available | CNA |
| TeamViewer | Host | 15.70 to before 15.82 | 15.82 | Patch available | CNA |
- Full Client VendorTeamViewer Affected 15.70 to before 15.82 Fixed in 15.82 Patch available CNA
- Host VendorTeamViewer Affected 15.70 to before 15.82 Fixed in 15.82 Patch available CNA
Remediation
- Fix · CNA Full Client (TeamViewer) Fixed in 15.82
- Fix · CNA Host (TeamViewer) Fixed in 15.82
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
TeamViewer Full Client, Host — teamviewer.com/en/resources/trust-center/security-bulletins…
5 records Highest priority Priority MEDIUM 1 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2026-62305 Remote Session Access Control Bypass Leading to Remote Code ExecutionPriority MEDIUM 40
- TI-2026-16009 Improper Limitation of a Pathname to a Restricted Directory (Path Traversal) in TeamViewer Desktop ClientsPriority LOW 35
- TI-2026-62304 Time-of-check time-of-use race condition in TeamViewer Full ClientPriority LOW 33
Timeline
- 2026-10-02 Threatist record created from CVE-2026-92368
- 2026-10-03 Alias added: GHSA-gj3p-4hcp-q7w6
References
More TeamViewer vulnerabilities
- TI-2019-13681 TeamViewer Desktop through 14.7.1965 allows a bypass of remote-login access control… KEVCVSS 3.1HIGH 7.0
- TI-2020-10745 TeamViewer Desktop for Windows before 15.8.3 does not properly quote its custom URI… CVSS 3.1HIGH 8.8
- TI-2010-02989 Untrusted search path vulnerability in TeamViewer 5.0.8703 and earlier allows local… CVSS 2.0HIGH 9.3
- TI-2021-13849 Memory corruption in TeamViewer CVSS 3.1HIGH 8.8
- TI-2018-11870 TeamViewer 10.x through 13.x allows remote attackers to bypass the brute-force… CVSS 3.0CRITICAL 9.8
- TI-2025-28565 File Hash Validation Bypass in NomadBranch.exe CVSS 3.1HIGH 8.8
Sources
- CVE-2026-92368 · CVE Program
- CVE-2026-92368 · NVD
- FIRST EPSS
- GHSA-gj3p-4hcp-q7w6 · GitHub Advisory Database · CC BY 4.0
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