8.8

CVE-2020-21844: gnu libredwg

CVSS: 8.8v3.1HighModified
Published 17-05-2021Last modified 09-07-2026
Open JSON

Vulnerability summary

CVE-2020-21844 is a high (CVSS 8.8) vulnerability in gnu libredwg. EPSS estimates a 1.52% chance of exploitation in the next 30 days, higher than 74.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
46/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
1.52%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 17-05-2021
    PublishedVulnerability first disclosed.
  2. 09-07-2026
    Last modifiedVulnerability information updated.

Description

GNU LibreDWG 0.10 is affected by: memcpy-param-overlap. The impact is: execute arbitrary code (remote). The component is: read_2004_section_header ../../src/decode.c:2580.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.52%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

0.00 pp

From 1.52% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.52%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Libredwg

    Maturity: poc

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Gnu1 product

1 vendor · 1 product

References

1 links