Vulnerability · Published Oct 25, 2021 · Assigned by zdi
CVE-2021-34859
High 7.8
In plain English
A high-severity memory corruption in TeamViewer from TeamViewer. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 8.9% (higher than 95% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TeamViewer | TeamViewer | 15.16.8.0 |
Weakness: CWE-119 · Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H