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CVE-2025-67748— Fickling has Code Injection vulnerability via pty.spawn()

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pty模块的安全检查，可能导致执行任意代码。

AI Predicted 4.3 Difficulty: Theoretical EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1564.004 · NTFS File Attributes
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I. Basic Information for CVE-2025-67748

Vulnerability Information
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Vulnerability Title
Fickling has Code Injection vulnerability via pty.spawn()
Source: CVE Program / CVE List V5
Vulnerability Description
Fickling is a Python pickling decompiler and static analyzer. Versions prior to 0.1.6 had a bypass caused by `pty` missing from the block list of unsafe module imports. This led to unsafe pickles based on `pty.spawn()` being incorrectly flagged as `LIKELY_SAFE`, and was fixed in version 0.1.6. This impacted any user or system that used Fickling to vet pickle files for security issues.
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pty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-2025-67748

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III. Intelligence Information for CVE-2025-67748

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Patches & Fixes for CVE-2025-67748 (2)

Vendor Advisories for CVE-2025-67748 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2025-67748

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