CVE-2025-71355

Description

Picklescan before 0.0.25 fails to detect unsafe global functions in the Numpy library, allowing attackers to bypass static analysis and execute arbitrary code during deserialization. Attackers can craft malicious pickle files using numpy.testing._private.utils.runstring within the reduce method to import dangerous libraries like os and execute arbitrary OS commands when the pickle file is loaded.

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EPSS — Exploit Prediction

0.0055

Probability of exploitation

0.43%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-184 CWE-184

References

Other References

https://github.com/mmaitre314/picklescan/security/advisories/GHSA-fj43-3qmq-673f https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-unsafe-numpy-function-detection-bypass https://github.com/mmaitre314/picklescan/security/advisories/GHSA-fj43-3qmq-673f

Frequently Asked Questions

What is CVE-2025-71355? +

Picklescan before 0.0.25 fails to detect unsafe global functions in the Numpy library, allowing attackers to bypass static analysis and execute arbitrary code during deserialization. Attackers can craft malicious pickle files using numpy.testing._private.utils.runstring within the reduce method to import dangerous libraries like os and execute arbitrary OS commands when the pickle file is loaded.

How do I check if I'm vulnerable to CVE-2025-71355? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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