CVE-2019-17662
ThinVNC 1.0b1 is vulnerable to arbitrary file read, which leads to a compromise of the VNC server.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 96.8%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 96.76% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 17 October 2019
- CISA KEV
- Not listed
- Weakness
- CWE-22, CWE-522
- Affected
- cybelsoft/thinvnc
- Source
- cve@mitre.org
EPSS 96.8% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://packetstormsecurity.com/files/154896/ThinVNC-1.0b1-Authentication-Bypass.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/bewest/thinvnc/issues/5Third Party Advisory
- https://github.com/shashankmangal2/Exploits/blob/master/ThinVNC-RemoteAccess/POC.pyBroken Link
- https://redteamzone.com/ThinVNC/Exploit, Third Party Advisory
- http://packetstormsecurity.com/files/154896/ThinVNC-1.0b1-Authentication-Bypass.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/bewest/thinvnc/issues/5Third Party Advisory
- https://github.com/shashankmangal2/Exploits/blob/master/ThinVNC-RemoteAccess/POC.pyBroken Link
- https://redteamzone.com/ThinVNC/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.