CVE-2026-50538

Public on 2026-06-19
Modified on 2026-06-19
Description
Attacker-controlled heap out-of-bounds write in libvncclient Tight decoder

NOTE: https://github.com/LibVNC/libvncserver/security/advisories/GHSA-v9pm-47h4-jcq8
DEBIANBUG: [1138253]
Severity
Important severity
Important
See what this means
CVSS v3 Base Score
8.8
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core libvncserver Not Affected

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H