CVE-2025-71323

CRITICAL EPSS 50.6%

Published Jun 17, 20262w ago · Modified Jun 17, 20262w ago

9.3 CVSS 4.0

Critical

Published Jun 17, 2026 2w ago

Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score

9.3

Exploitability

—

Impact

—

Vector string

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

50.6% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-184

References 2

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.