CVE-2020-13699

mediumpriority · attend · 54EPSS 0.258 · 98 %ileexploit · functionalEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · functional

Likely / severe?

25.8% (98th) EPSS

CVSS 6.8 · medium

Is it mine?

5 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationVBASE Pro-RT/ Server-RT (Web Remote)cisa_csaf_ot
For more information, please contact VISAM using the information provided on the company contact page.
https://www.vbase.net/en/contact.php

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 5.3–9.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.05.3mediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:Lsecondary · CISA US

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Fsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-88USprimaryCWE-428USCWE-88US

exploits (2)

Public proof-of-concept and weaponised exploit code.

auxiliary/server/teamviewer_uri_smb_redirectTeamViewer Unquoted URI Handler SMB Redirectfunctional · metasploit
Dilshan-Eranda/CVE-2020-13699Dilshan-Eranda/CVE-2020-13699PoC · poc_in_github

affected products (5)

Products and version ranges known to be affected.

VBASE Pro-RT/ Server-RT (Web Remote): Version 11.6.0.6all versionscisa_csaf_otUS
VISAM VBASE Pro-RT/ Server-RT (Web Remote)all versionscisa_csaf_otUS
n/a n/a≤ n/aenisa_euvdEU
TeamViewer GmbH TeamViewer≤ 15.8.3fstec_bduRU
teamviewer teamviewer< 15.8.3nvdUScpe:2.3:a:teamviewer:teamviewer:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-21-308-01VISAM VBASE Editor2021-11-04icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities may allow un-neutralized user-controllable data input, disclosure of local files, access to NTLM (Windows New Technology LAN Manager) hashes, and access to sensitive files.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd NVD CVE.org MITRE

published 2020-07-29modified 2026-06-17

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references (10)

External citations — patches, advisories, analysis.

scry

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