CVE-2021-34859

HIGH

TeamViewer 15.16.8.0 - Remote Code Execution via TVS File Parsing

Title source: llm
STIX 2.1

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of TeamViewer 15.16.8.0. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of TVS files. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13697.

References (2)

Core 2
Core References
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-21-1003/

Scores

CVSS v3 8.8
EPSS 0.0913
EPSS Percentile 94.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-119 CWE-787
Status published
Products (1)
teamviewer/teamviewer 15.16.8.0
Published Oct 25, 2021
Tracked Since Feb 18, 2026