by Kastro
Paper/Archive/CVE-2025-71323

CVE-2025-71323

picklescan picklescan — picklescan - Remote Code Execution via Unblocked ctypes Module

EPSS 1.0%public exploitCVSS 9.8
critical.is priorityof 100
52
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 62.6.626 × 2012.5Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
picklescan< 0.0.330.0.33CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)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
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/mmaitre314/picklescan/security/advisories/GHSA-4675-36f9-wf6rwriteupvulncheck.com/advisories/picklescan-remote-code-execution-via-unblocked-ctypes-module