CVE-2016-9941 describes a critical heap-based buffer overflow in LibVNCClient, part of LibVNCServer versions prior to 0.9.11. This flaw allows remote VNC servers to trigger a denial of service or potentially execute arbitrary code on vulnerable clients by sending a specially crafted FramebufferUpdate message. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no public exploit code available (Metasploit, Nuclei, ExploitDB), nor is it listed in CISA's KEV catalog, and it has garnered no community discussion or media coverage, suggesting a low likelihood of active exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 0.9.10CPE matchmatch criteria | cpe:2.3:a:libvncserver_project:libvncserver:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.