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CVE-2025-67747— Fickling has missing detection for marshal.loads and types.FunctionType in unsafe modules list

Quick assessment

Affected
trailofbits fickling
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Fickling是Trail of Bits开源的一个Python的反编译器和静态分析器。 Fickling 0.1.6之前版本存在代码问题漏洞，该漏洞源于缺少marshal和types模块的安全检查，可能导致执行任意代码。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.28% · P19
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I. Basic Information for CVE-2025-67747

Vulnerability Information
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Vulnerability Title
Fickling has missing detection for marshal.loads and types.FunctionType in unsafe modules list
Source: CVE Program / CVE List V5
Vulnerability Description
Fickling is a Python pickling decompiler and static analyzer. Versions prior to 0.1.6 are missing `marshal` and `types` from the block list of unsafe module imports. Fickling started blocking both modules to address this issue. This allows an attacker to craft a malicious pickle file that can bypass fickling since it misses detections for `types.FunctionType` and `marshal.loads`. A user who deserializes such a file, believing it to be safe, would inadvertently execute arbitrary code on their system. This impacts any user or system that uses Fickling to vet pickle files for security issues. The issue was fixed in version 0.1.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Source: CVE Program / CVE List V5
Vulnerability Type
不完整的黑名单
Source: CVE Program / CVE List V5
Vulnerability Title
Fickling 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fickling是Trail of Bits开源的一个Python的反编译器和静态分析器。 Fickling 0.1.6之前版本存在代码问题漏洞，该漏洞源于缺少marshal和types模块的安全检查，可能导致执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
trailofbits fickling < 0.1.6 -

II. Public POCs for CVE-2025-67747

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III. Intelligence Information for CVE-2025-67747

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Patches & Fixes for CVE-2025-67747 (2)

Vendor Advisories for CVE-2025-67747 (1)

Other References for CVE-2025-67747 (1)

IV. Related Vulnerabilities

Same product: fickling
Same vendor: trailofbits
Same weakness: CWE-184

V. Comments for CVE-2025-67747

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