What is CVE-2021-39432?

CVE-2021-39432 is a medium-severity vulnerability in Diplib, classified under Double Free. CVSS score: 6.5/10. Published 2022-11-04.

How severe is CVE-2021-39432?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Double Free in Diplib

CVE-2021-39432

diplib v3.0.0 is vulnerable to Double Free.

Vulnerability class: Double Free

Published 2022-11-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.1th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000

Affected products

Diplib — versions 3.0.0

Weakness classification (CWE)

References

github.com/DIPlib/diplib/issues/80 (Exploit, Patch, Third Party Advisory, Issue Tracking)
github.com/DIPlib/diplib/commit/8b9a2670ce66ff2fd5addf592f7825e1f5adb5b5 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-39432?: CVE-2021-39432 is a medium-severity vulnerability in Diplib, classified under Double Free. CVSS score: 6.5/10. Published 2022-11-04.
How severe is CVE-2021-39432?: Medium severity. CVSS v3 base score is 6.5 out of 10.