LibVNC before commit a83439b9fbe0f03c48eb94ed05729cb016f8b72f contains multiple heap out-of-bound write vulnerabilities in VNC client code that can result remote code execution
https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html
https://usn.ubuntu.com/3877-1/
https://www.debian.org/security/2019/dsa-4383
https://security.gentoo.org/glsa/201908-05
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
https://usn.ubuntu.com/4547-1/
https://usn.ubuntu.com/4587-1/
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
Source: MITRE
Published: 2018-12-19
Updated: 2022-03-31
Type: CWE-787
Base Score: 7.5
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 10
Severity: HIGH
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL