01 Record

CVE-2026-50538

libvncclient Tight decoder has an attacker-controlled heap out-of-bounds write

HighPUBLISHEDCNA: GitHub_M

Base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

02 Description

libvncclient Tight decoder has an attacker-controlled heap out-of-bounds write

Published

2026-08-21 21:03Z4 HR AGO

Last updated

2026-08-21 21:03Z4 HR AGO

Reserved

2026-06-04

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses

SSVC decision

No CISA-ADP assessment

Data version

5.2

Document digest

a9b9735e31076b288b912401ec4d1f0c82c302195f9cd3ed71ad90fb9c6a136c

VendorProductVersionsPlatforms

LibVNClibvncserver>= 0.9.12, <= 0.9.15—