CVE-2025-71347: picklescan before 0.0.33 fails to detect malicious pickle files using numpy.f2py.crackfortran.param_eval function in reduce methods, allowing attackers to bypass security checks. R
picklescan before 0.0.33 fails to detect malicious pickle files using numpy.f2py.crackfortran.param_eval function in reduce methods, allowing attackers to bypass security checks. Remote attackers can embed undetected code in pickle files that executes during deserialization, enabling arbitrary code execution in applications loading untrusted pickle data.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-71347
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2025-713470.45% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-71347 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for picklescan
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- highCVE-2025-71375: picklescan before 0.0.34 fails to detect the _operator.methodcaller built-in function when sca…nvd · 2026-07-04
- highCVE-2025-71373: picklescan before 0.0.33 fails to detect operator.methodcaller function calls in pickle files,…nvd · 2026-07-04
- highCVE-2025-71372: Picklescan before 0.0.33 fails to detect the numpy.f2py.crackfortran.getlincoef gadget in pick…nvd · 2026-07-04
- highCVE-2025-71369: picklescan before 0.0.28 fails to detect malicious pickle files that use torch.utils.data.data…nvd · 2026-07-04
- highCVE-2025-71367: picklescan before 0.0.34 fails to detect _operator.attrgetter function calls in pickle payload…nvd · 2026-07-04
- highCVE-2025-71366: picklescan before 0.0.28 fails to detect malicious torch.utils.bottleneck.__main__.run_cprofil…nvd · 2026-07-04
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