CVE-2019-17662ThinVNC 1.0b1 is vulnerable to arbitrary file read, which leads to a compromise of the VNC server. The vulnerability exists even when…
- 9.8CriticalCVSS base score
- 96.8%Exploitation in 30 daysEPSS · top 0.1% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 3Public exploitsMetasploit, Nuclei and Exploit-DB
Description
ThinVNC 1.0b1 is vulnerable to arbitrary file read, which leads to a compromise of the VNC server. The vulnerability exists even when authentication is turned on during the deployment of the VNC server. The password for authentication is stored in cleartext in a file that can be read via a ../../ThinVnc.ini directory traversal attack vector.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module, a Nuclei template and an Exploit-DB entry for it.
Show the exploits3
Metasploit modules1 module
- ThinVNC Directory Traversal (Metasploit module) (opens in a new tab)
auxiliary/scanner/http/thinvnc_traversalRank normaldisclosed 16 Oct 2019
Nuclei templates1 template
- ThinVNC 1.0b1 - Authentication Bypass (Nuclei template) (opens in a new tab)
http/cves/2019/CVE-2019-17662.yamlSeverity critical
Exploit-DB1 entry
- ThinVNC 1.0b1 - Authentication Bypass (Exploit-DB entry) (opens in a new tab)
EDB-ID 47519remote, windowspublished 17 Oct 2019Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 96.8% · top 0.1% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
n/a
- affected n/a
References
References4
- https://redteamzone.com/ThinVNC/ (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/shashankmangal2/Exploits/blob/master/ThinVNC-RemoteAccess/POC.py (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/bewest/thinvnc/issues/5 (opens in a new tab)x_refsource_MISCx_transferred
- http://packetstormsecurity.com/files/154896/ThinVNC-1.0b1-Authentication-Bypass.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2019-7967 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2019-17662)Record last updated .