CVE-2021-39523

6.5 MEDIUM

An issue was discovered in libredwg through v0.10.1.3751

Published: 2021-09-20 · Last updated: 2026-06-17

Severity and scoring

CVSS: 6.5 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE: CWE-476

Affected products

Vendor	Product
gnu	libredwg

Description

An issue was discovered in libredwg through v0.10.1.3751. A NULL pointer dereference exists in the function check_POLYLINE_handles() located in decode.c. It allows an attacker to cause Denial of Service.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-39523
[Exploit reference]https://github.com/LibreDWG/libredwg/issues/251
[Exploit reference]https://github.com/LibreDWG/libredwg/issues/251

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