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TI-2021-16764 Aliases CVE-2021-39432GHSA-xf2w-5673-h6ww

diplib v3.0.0 is vulnerable to Double Free.

Priority MEDIUM 62CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-416 and the CVSS impact.

Summary

diplib v3.0.0 is vulnerable to Double Free.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00881 59th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed diplib (PyPI): 3.1.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—diplib (PyPI)before 3.1.03.1.0Patch availableGHSA-xf2w-5673-h6ww
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • diplib (PyPI) Vendor— Affected before 3.1.0 Fixed in 3.1.0 Patch available GHSA-xf2w-5673-h6ww

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:diplib:diplib:3.0.0:*:*:*:*:*:*:*3.0.0VulnerableDiplib
  • cpe:2.3:a:diplib:diplib:3.0.0:*:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·Diplib

Remediation

  • Fix · GHSA-xf2w-5673-h6ww diplib (PyPI) Fixed in 3.1.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-39432
  2. 2026-10-03 Alias added: GHSA-xf2w-5673-h6ww

References

Sources