CVE-2021-34859: TeamViewer TVS File Parsing Memory Corruption Remote Code Execution Vulnerability
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.
Other sources
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 memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2021-34859?
CVE-2021-34859 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of TeamViewer 15.16.8.0.
How can this vulnerability be exploited?
To exploit this vulnerability, the target must visit a malicious page or open a malicious file, requiring user interaction.
What is the severity of CVE-2021-34859?
CVE-2021-34859 has a severity rating of 8.8, which is considered high.
Which software versions are affected?
TeamViewer 15.16.8.0 is the affected version for this vulnerability.
Is there a fix available for CVE-2021-34859?
To mitigate this vulnerability, users should update to the latest version of TeamViewer and apply any available patches from the vendor.