CVE-2025-71323

picklescan - Remote Code Execution via Unblocked ctypes Module

CVSS 9.3 CRITICALEPSS 0.8%CWE-184

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.

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

Affected products

picklescan · picklescan

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References

https://github.com/mmaitre314/picklescan/security/advisories/GHSA-4675-36f9-wf6r https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-unblocked-ctypes-module