CVE-2025-71321 - CVE House

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Status published Critical CVE-2025-71321

picklescan - Arbitrary File Writing via distutils Module Bypass

9.3 CVSS

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

0x-Apollyon

References

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Affected Vendor

picklescan

View all reports →

Affected Software

picklescan

Vulnerable Versions:

0, 0.0.33

Timeline

Official Publish: June 17th, 2026

Last Modified: June 17th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1059 Command and Scripting Interpreter

T1505.003 Web Shell

T1105 Ingress Tool Transfer

Command and Control

T1068 Exploitation for Privilege Escalation

Privilege Escalation