CVE-2018-20750 is a critical heap out-of-bounds write vulnerability in LibVNC through version 0.9.12, specifically within libvncserver/rfbserver.c, affecting products from Canonical, Debian, LibVNC Project, and Siemens. This vulnerability has a CVSS score of 9.8, indicating a critical severity due to its network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability impacts. While there is no evidence of active exploitation, nor publicly available exploit code in Metasploit, Nuclei, or ExploitDB, the vulnerability has garnered significant community discussion with 10 mentions, placing it in the top 1% of CVEs for community attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.9.12CPE matchmatch criteria | cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:* | ||
14.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | ||
16.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* | ||
16.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | ||
18.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/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.