CVE-2025-71321— picklescan - Arbitrary File Writing via distutils Module Bypass

CVSS 9.8 · Critical Updated Jun 18, 2026

Possible ATT&CK Techniques 3AI

T1564 · Hide Artifacts T1059 · Command and Scripting Interpreter T1203 · Exploitation for Client Execution

Affected Version Matrix 2

Vendor	Product	Version Range	Status
picklescan	picklescan	`< 0.0.33`	affected
		`0.0.33`	unaffected

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Vulnerability Information

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Vulnerability Title

picklescan - Arbitrary File Writing via distutils Module Bypass

Source: NVD (National Vulnerability Database)

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.

Source: NVD (National Vulnerability Database)

CVSS Information

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

Source: NVD (National Vulnerability Database)

Vulnerability Type

可信数据的反序列化

Source: NVD (National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
picklescan	picklescan	0 ~ 0.0.33	-

II. Public POCs for CVE-2025-71321

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2025-71321

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Vendor Advisories for CVE-2025-71321 (2)

🔗 Arbitrary File Writing · Advisory · mmaitre314/picklescan · GitHub Read full article vendor-advisory
🔗 picklescan - Arbitrary File Writing via distutils Module Bypass | Advisories | VulnCheckthird-party-advisory

https://nvd.nist.gov/vuln/detail/CVE-2025-71321

Same Patch Batch · picklescan · 2026-06-17 · 10 CVEs total

CVE-2026-3490	10.0 CRITICAL	picklescan - Universal Blocklist Bypass via pkgutil.resolve_name
CVE-2026-53874	9.8 CRITICAL	picklescan - Arbitrary Code Execution via Obfuscated eval Call
CVE-2026-53873	9.8 CRITICAL	picklescan - Arbitrary Code Execution via profile.run() Blocklist Bypass
CVE-2025-71325	9.8 CRITICAL	picklescan - Detection Bypass via STACK_GLOBAL Opcode Parsing Logic Flaw
CVE-2025-71323	9.8 CRITICAL	picklescan - Remote Code Execution via Unblocked ctypes Module
CVE-2025-71320	9.8 CRITICAL	picklescan - Remote Code Execution via Incomplete Disallowed Inputs
CVE-2025-71322	8.8 HIGH	PickleScan - Unsafe Globals Check Bypass via pty.spawn Function
CVE-2026-53872	7.5 HIGH	picklescan - Arbitrary File Read via Unsafe Pickle Deserialization
CVE-2026-53875		picklescan - Scanning Bypass via Dynamic Eval in scan_pytorch

IV. Related Vulnerabilities

Same product: picklescan

Same vendor: picklescan

Same weakness: CWE-502

V. Comments for CVE-2025-71321

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CVE-2025-71321— picklescan - Arbitrary File Writing via distutils Module Bypass

Possible ATT&CK Techniques 3AI

Affected Version Matrix 2

I. Basic Information for CVE-2025-71321

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2025-71321

III. Intelligence Information for CVE-2025-71321

Vendor Advisories for CVE-2025-71321 (2)

Same Patch Batch · picklescan · 2026-06-17 · 10 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2025-71321

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