CVE-2021-21898: Debian Linux

High severity, CVSS 8.8. EPSS: 2.6% chance of exploitation in the next 30 days.

A code execution vulnerability exists in the dwgCompressor::decompress18() functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dwg file can lead to an out-of-bounds write. An attacker can provide a malicious file to trigger this vulnerability.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only; version 11.0 only
• Fedoraproject Fedora: version 34 only; version 35 only
• Librecad Libdxfrw: version 2.2.0-rc2-19-ge02f3580 only

Published 2021-11-19. Last modified 2026-06-17.