Is CVE-2020-13699 actively exploited?

No active exploitation of CVE-2020-13699 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-13699 be exploited remotely?

Yes. CVE-2020-13699 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-13699?

CVE-2020-13699 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2020-13699

HIGH

CVE-2020-13699

CWE-88Published: July 29, 2020· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

TeamViewer Desktop for Windows before 15.8.3 does not properly quote its custom URI handlers. A malicious website could launch TeamViewer with arbitrary parameters, as demonstrated by a teamviewer10: --play URL. An attacker could force a victim to send an NTLM authentication request and either relay the request or capture the hash for offline password cracking. This affects teamviewer10, teamviewer8, teamviewerapi, tvchat1, tvcontrol1, tvfiletransfer1, tvjoinv8, tvpresent1, tvsendfile1, tvsqcustomer1, tvsqsupport1, tvvideocall1, and tvvpn1. The issue is fixed in 8.0.258861, 9.0.258860, 10.0.258873, 11.0.258870, 12.0.258869, 13.2.36220, 14.2.56676, 14.7.48350, and 15.8.3.

NVD Source

Technical Analysis

CVE-2020-13699 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.