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Vulnerability · Published Jun 17, 2020 · Assigned by mitre

CVE-2020-14398

High 7.5

In plain English

A high-severity security flaw in the libvncserver package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.7% (higher than 86% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.7%top 13.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An issue was discovered in LibVNCServer before 0.9.13. An improperly closed TCP connection causes an infinite loop in libvncclient/sockets.c.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12libvncserver0.9.13+dfsg-1DEBIAN-CVE-2020-14398
Debian:13libvncserver0.9.13+dfsg-1DEBIAN-CVE-2020-14398
Debian:14libvncserver0.9.13+dfsg-1DEBIAN-CVE-2020-14398
Ubuntu:22.04:LTSveyonno fix listedUBUNTU-CVE-2020-14398
Ubuntu:24.04:LTSveyonno fix listedUBUNTU-CVE-2020-14398
Ubuntu:25.10veyonno fix listedUBUNTU-CVE-2020-14398
Ubuntu:26.04:LTSveyonno fix listedUBUNTU-CVE-2020-14398
Ubuntu:26.10veyonno fix listedUBUNTU-CVE-2020-14398

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References