picklescan - Remote Code Execution via Unblocked ctypes Module | Advisories

Advisories

picklescan - Remote Code Execution via Unblocked ctypes Module

severity: critical
date: 6/17/2026
Affecting: picklescan >= 0, < 0.0.33
CVE: CVE-2025-71323
CWE: CWE-184 Incomplete List of Disallowed Inputs
CVSS: 9.3
CVSS V4 Vector: 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
References: GHSA Advisory GHSA-4675-36f9-wf6r
Credit: 0x-Apollyon
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.

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