CVE-2025-67748

Name: CVE-2025-67748
Creator: NVD / NIST
Published: 2025-12-16T01:15:52.95+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2025-67748 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

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

CVSS 4.0

7.1/10

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

EPSS Probability

0.24%

14.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Trailofbits	Fickling	< 0.1.6

References

https://github.com/trailofbits/fickling/pull/108Issue Tracking, Patch
https://github.com/trailofbits/fickling/pull/187Issue Tracking, Patch
https://github.com/trailofbits/fickling/security/advisories/GHSA-r7v6-mfhq-g3m2Exploit, Vendor Advisory

Timeline

Published: Dec 16, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-67748?

How severe is CVE-2025-67748?

CVE-2025-67748 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2025-67748?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-67748?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST