CVE-2020-21813

Name: CVE-2020-21813
Creator: NVD / NIST
Published: 2021-05-17T18:15:07.45+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.98%

Last modified Jun 17, 2026

CVE-2020-21813 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A heap based buffer overflow issue exists in GNU LibreDWG 0.10.2641 via output_TEXT ../../programs/dwg2SVG.c:114.. EPSS estimates a 0.98% chance of exploitation in the next 30 days.

Description

A heap based buffer overflow issue exists in GNU LibreDWG 0.10.2641 via output_TEXT ../../programs/dwg2SVG.c:114.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.98%

57.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Gnu	Libredwg	0.10.2641

References

http://gnu.comVendor Advisory
http://libredwg.comBroken Link
https://github.com/LibreDWG/libredwg/issues/182#issuecomment-572890969Exploit, Issue Tracking, Patch, Third Party Advisory
http://gnu.comVendor Advisory
http://libredwg.comBroken Link
https://github.com/LibreDWG/libredwg/issues/182#issuecomment-572890969Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: May 17, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-21813?

A heap based buffer overflow issue exists in GNU LibreDWG 0.10.2641 via output_TEXT ../../programs/dwg2SVG.c:114.

How severe is CVE-2020-21813?

CVE-2020-21813 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.98% probability of exploitation in the next 30 days.

How do I fix CVE-2020-21813?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-21813?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST