Vulnerability in Microsoft Windows
CVE-2020-13699
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.258 (97.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.258 · newest: 0.258 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- community.teamviewer.com/t5/Announcements/Statement-on-CVE-2020-13699/td-p/98448 (Vendor Advisory)
- jeffs.sh/CVEs/CVE-2020-13699.txt (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-13699?
- CVE-2020-13699 is a high-severity vulnerability in Microsoft Windows, classified under Argument Injection. CVSS score: 8.8/10. Published 2020-07-29.
- How severe is CVE-2020-13699?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-13699 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.