CVE-2025-71359: picklescan before 0.0.29 fails to detect malicious pickle payloads that utilize lib2to3.pgen2.grammar.Grammar.loads in the reduce method, allowing remote code execution. Attackers
picklescan before 0.0.29 fails to detect malicious pickle payloads that utilize lib2to3.pgen2.grammar.Grammar.loads in the reduce method, allowing remote code execution. Attackers can craft pickle files embedding dangerous code that evades picklescan detection and executes during pickle.load() deserialization.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-71359
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-2025-713590.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 35% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-71359 | 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
More from NVD Recent CVEs
- highCVE-2026-58281: Deserialization of untrusted data in Microsoft Edge (Chromium-based) allows an unauthorized at…2026-07-11
- mediumCVE-2026-10660: The Bluetooth BAP Broadcast Assistant GATT client in subsys/bluetooth/audio/bap_broadcast_assi…2026-07-11
- lowCVE-2026-61870: ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the VIFF encoder when memo…2026-07-11
- lowCVE-2026-61861: ImageMagick before 7.1.2-26 contains a use-after-free vulnerability in the FormatMagickCaption…2026-07-11
- lowCVE-2026-61858: ImageMagick before 7.1.2-26 contains a policy bypass vulnerability in the APNG encoder and ext…2026-07-11