CVE-2025-71357

Name: CVE-2025-71357
Creator: NVD / NIST
Published: 2026-06-21T14:16:23.017+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.6/10EPSS 0.25%

Last modified Jun 26, 2026

CVE-2025-71357 is a high-severity vulnerability rated 7.6/10 on the CVSS scale. picklescan before 0.0.30 fails to detect malicious pickle files using idlelib.pyshell.ModifiedInterpreter.runcommand in reduce methods. Attackers can embed undetected code in pickle files that executes remote commands when loaded by victims.. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

picklescan before 0.0.30 fails to detect malicious pickle files using idlelib.pyshell.ModifiedInterpreter.runcommand in reduce methods. Attackers can embed undetected code in pickle files that executes remote commands when loaded by victims.

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

7.6/10

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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

0.25%

16.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Mmaitre314	Picklescan	< 0.0.30

References

https://github.com/mmaitre314/picklescan/security/advisories/GHSA-j343-8v2j-ff7wExploit, Vendor Advisory
https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-undetected-idlelib-pyshell-modifiedinterpreter-runcommandThird Party Advisory
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-j343-8v2j-ff7wExploit, Vendor Advisory

Timeline

Published: Jun 21, 2026
Last Modified: Jun 26, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-71357?

How severe is CVE-2025-71357?

CVE-2025-71357 has a CVSS score of 7.6/10 (HIGH severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2025-71357?

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-2025-71357?

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

Scan your code now

Source: NVD / NIST