8.8

CVE-2021-39528: gnu libredwg Double Free

CVSS: 8.8v3.1HighModified
Published 20-09-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-39528 is a high (CVSS 8.8) Double Free vulnerability in gnu libredwg. EPSS estimates a 1.08% chance of exploitation in the next 30 days, higher than 64.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
45/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
1.08%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 20-09-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in libredwg through v0.10.1.3751. dwg_free_MATERIAL_private() in dwg.spec has a double free.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.08%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

0.00 pp

From 1.08% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.08%

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