CVE-2025-71347CWE-502insecure-deserialization

CVE-2025-71347

High · published July 4, 2026

CVSS v3.1
8.1
EPSS
1%
Percentile
46.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00564 · 46.1th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-07-04T06:16Z
References (3)
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-cffc-mxrf-mhh4 · [email protected]https://www.vulncheck.com/advisories/picklescan-undetected-remote-code-execution-via-numpy-f2py-crackfortran-param-eval · [email protected]https://github.com/mmaitre314/picklescan/security/advisories/GHSA-cffc-mxrf-mhh4 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 04 JUL 01:23Z
    picklescan - Undetected Remote Code Execution via numpy.f2py.crackfortran.param_eval
    cvelistv5