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CVE-2021-39432

diplib Double Free

6.5 MediumFix available

diplib v3.0.0 is vulnerable to Double Free.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.88%Unchanged since Nov 5, 2022
90%50%10%1%

What each source reports

NVD Score used 6.5

diplib v3.0.0 is vulnerable to Double Free.

Record
CVE-2021-39432
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-415, CWE-416
Updated
2026-11-02
CVE List 6.5

diplib v3.0.0 is vulnerable to Double Free.

Record
CVE-2021-39432
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-416
Updated
2026-11-02
EUVDEUVD-2022-0398 6.5

diplib v3.0.0 is vulnerable to Double Free.

Record
EUVD-2022-0398
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-xf2w-5673-h6ww 6.5

diplib Double Free

diplib v3.0.0 is vulnerable to Double Free.

Record
GHSA-xf2w-5673-h6ww
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-415, CWE-416
Updated
2026-11-02
OSV 6.5

diplib v3.0.0 is vulnerable to Double Free.

Record
CVE-2021-39432
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVGHSA-xf2w-5673-h6ww 6.5

diplib Double Free

diplib v3.0.0 is vulnerable to Double Free.

Record
GHSA-xf2w-5673-h6ww
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-415, CWE-416
Updated
2026-11-02
OSVPYSEC-2022-43131 6.5

diplib v3.0.0 is vulnerable to Double Free.

Record
PYSEC-2022-43131
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
diplib
PyPI
before 3.1.0
3.1.0
diplib
PyPI
before 3.1.0, plus listed versions
3.0.03.0b53.0b63.0b73.0b83.0b93.1rc1
3.1.0

History

History
RecordedChangedSources
affected
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-39432 is a medium vulnerability (CVSS 6.5) in Diplib, published November 4, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.88%, the 59th percentile. Fixed in diplib 3.1.0.

References

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