CVE-2021-21899 is a high-severity code execution vulnerability affecting LibreCad's libdxfrw library (version 2.2.0-rc2-19-ge02f3580) and related Debian and Fedora packages. It stems from a heap buffer overflow in the dwgCompressor::copyCompBytes21 function, triggered by a specially crafted .dwg file. With a CVSS score of 8.8, this vulnerability allows an unauthenticated attacker to achieve high confidentiality, integrity, and availability impact through user interaction (opening a malicious file). Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.2.0-rc2-19-ge02f3580CPE matchmatch criteria | cpe:2.3:a:librecad:libdxfrw:2.2.0-rc2-19-ge02f3580:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | ||
35CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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 0.1 Security Researcher mentions.
Remediation records are not available for this CVE.