CVE-2021-21900

medium

Published — · Modified —

CVSS v3

—

CVSS v2

—

VIR risk

5.5

Description

A code execution vulnerability exists in the dxfRW::processLType() functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dxf file can lead to a use-after-free vulnerability. An attacker can provide a malicious file to trigger this vulnerability.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-21900

OS impact

OS	Version	Status	Fixed in
arch		affected
debian	bookworm	fixed	`2.1.3-2`
debian	bullseye	fixed	`2.1.3-1.3+deb11u1`
debian	forky	fixed	`2.1.3-2`
debian	sid	fixed	`2.1.3-2`
debian	trixie	fixed	`2.1.3-2`

References

https://security-tracker.debian.org/tracker/CVE-2021-21900

Verify integrity in audit chain (admin only). AS-IS.