CVE-2021-34858

High

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of TeamViewer. 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 read past the end of an allocated structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13606.

SeverityHigh
CVSS7.8
Exploit probability—
ProductTeamviewer
PublishedJan 13, 2022
First seenJan 13, 2022

How to fix

Update
  • teamviewer teamviewer15.21.2 or later

Affected products

ProductAffected versionsFixed in
teamviewer teamviewerv < 15.21.215.21.2

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CVE-2021-34858 · Teamviewer · Dark Radar