CVE-2025-71323 | THREATINT

Description

picklescan before 0.0.33 fails to block the ctypes module, allowing attackers to achieve remote code execution by invoking direct syscalls and accessing raw memory. Attackers can craft malicious pickle files using ctypes.WinDLL to load kernel32.dll and execute arbitrary commands, bypassing sandbox protections and gadget chain detection.

PUBLISHED Reserved 2026-06-08 | Published 2026-06-17 | Updated 2026-06-17 | Assigner VulnCheck

CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Incomplete List of Disallowed Inputs

Product status

Default status

unaffected

Any version before 0.0.33

affected

0.0.33 (semver)

unaffected

Credits

0x-Apollyon reporter

References

github.com/...lescan/security/advisories/GHSA-4675-36f9-wf6r exploit

github.com/...lescan/security/advisories/GHSA-4675-36f9-wf6r (GHSA Advisory GHSA-4675-36f9-wf6r) vendor-advisory

www.vulncheck.com/...e-execution-via-unblocked-ctypes-module (VulnCheck Advisory: picklescan - Remote Code Execution via Unblocked ctypes Module) third-party-advisory

cve.org (CVE-2025-71323)

nvd.nist.gov (CVE-2025-71323)

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