7.5

CVE-2021-28236: gnu libredwg NULL Pointer Dereference

CVSS: 7.5v3.1HighModified
Published 02-12-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-28236 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in gnu libredwg. EPSS estimates a 1.24% chance of exploitation in the next 30 days, higher than 68.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.24%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 02-12-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

LibreDWG v0.12.3 was discovered to contain a NULL pointer dereference via out_dxfb.c.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.24%

Chance of exploitation in the next 30 days

Percentile

69%

Versus all other CVEs

30-day change

+0.04 pp

From 1.20% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.24%

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

Affected systems

Gnu1 product

1 vendor · 1 product

References

1 links