CVE-2025-67748

HIGH EPSS 14.2%
Published Dec 16, 20256mo ago · Modified Jun 17, 20262w ago
7.1 CVSS 4.0
High
Find Similar
Published Dec 16, 2025 6mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
7.1
Exploitability
—
Impact
—
Vector string
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/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 Local
Attack Complexity Low
Privileges Required None
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
14.2% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 3

CWE-184
CWE-502 Deserialization of Untrusted Data Validation
CWE-94 Improper Control of Generation of Code (Code Injection) Injection

Affected Products 1

VendorProductVersionRange
trailofbitsfickling* <0.1.6

References 3

  • github.com https://github.com/trailofbits/fickling/pull/108
    Issue TrackingPatch
  • github.com https://github.com/trailofbits/fickling/pull/187
    Issue TrackingPatch
  • github.com https://github.com/trailofbits/fickling/security/advisories/GHSA-r7v6-mfhq-g3m2
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/trailofbits/fickling/pull/108
    Issue TrackingPatch
  • github.com https://github.com/trailofbits/fickling/pull/187
    Issue TrackingPatch