CVE Vulnerability

CVE-2021-34858

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.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://community.teamviewer.com/English/discussion/117794/august-updates-security-patches/p1 Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1001/ Third Party Advisory VDB Entry
Configurations

Configuration 1

cpe:2.3:a:teamviewer:teamviewer:*:*:*:*:*:*:*:*
Information

Published : 2022-01-13 10:15

Updated : 2022-01-21 02:17

NVD link : CVE-2021-34858

Mitre link : CVE-2021-34858

Products Affected
No products.
CWE
CWE-125

Out-of-bounds Read