CVE-2025-71321

CRITICAL EPSS 45.4%

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 contains an arbitrary file writing vulnerability that allows attackers to bypass the dangerous blocklist by using distutils.file_util.write_file. Attackers can construct malicious pickle objects to overwrite critical system files and achieve denial of service or remote code execution.

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

45.4% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-502 Deserialization of Untrusted Data Validation

References 2

github.com https://github.com/mmaitre314/picklescan/security/advisories/GHSA-m273-6v24-x4m4
vulncheck.com https://www.vulncheck.com/advisories/picklescan-arbitrary-file-writing-via-distutils-module-bypass

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.