Libvnc Project · weakness class

Denial of Service

3 CVEs

Every dot is a CVE in what this vendor ships; the named ones are the most at risk.

Every one of the 3 is a mark on the map. Named now: 1 to 3, most at risk first.

LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability allows attacker to consume excessiv…CVE-2018-20021Libvnc Project · 3.4% likely
CWE-835
An issue was discovered in LibVNCServer before 0.9.13. An improperly closed TCP connection causes an infinite loop in libvncclient/sockets.c.CVE-2020-14398Libvnc Project · 2.7% likely
CWE-835
An issue was discovered in LibVNCServer before 0.9.13. libvncclient/rfbproto.c does not limit TextChat size.CVE-2020-14405Libvnc Project · 1.9% likely
CWE-770

exploited in the wildcheck availableringed, named or not: CyberSIXT has reported on it

Zoom in on the map and the dots under the middle of it are named where they are.

Data as of 2026-11-15. CVE List through 2026-11-15 · EPSS of 2026-11-14 · CISA KEV checked 2026-11-15. Sources: the CVE List, CISA KEV, EPSS, NVD, nuclei templates and public bug bounty data.