CVE-2020-13699 is a critical vulnerability in TeamViewer Desktop for Windows versions prior to 15.8.3, where unquoted custom URI handlers allow malicious websites to launch TeamViewer with arbitrary parameters. This flaw enables attackers to force NTLM authentication requests, which can then be relayed or captured for offline password cracking, impacting various TeamViewer products on Windows. With a CVSS score of 8.8 (HIGH), the vulnerability is easily exploitable over the network with low attack complexity, requiring user interaction, and can lead to high confidentiality, integrity, and availability impacts. While not listed in CISA KEV, a Metasploit module exists for SMB redirection, and the vulnerability has garnered significant community discussion and media coverage, indicating awareness and potential for exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 15.8.3CPE matchmatch criteria | cpe:2.3:a:teamviewer:teamviewer:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.
Remediation records are not available for this CVE.