CVE-2025-71364CWE-502insecure-deserialization

CVE-2025-71364

High · published July 4, 2026

CVSS v3.1
8.1
EPSS
1%
Percentile
52.5
In the wild
Unconfirmed
What it is

picklescan before 0.0.30 fails to detect the asyncio.unix_events._UnixSubprocessTransport._start function in pickle reduce methods, allowing remote code execution. Attackers can craft malicious pickle files embedding this built-in function that evade detection but execute arbitrary commands when loaded.

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
0.00697 · 52.5th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-07-04T06:16Z
References (3)
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-q77w-mwjj-7mqx · [email protected]https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-undetected-asyncio-unix-events-unixsubprocesstransport-start · [email protected]https://github.com/mmaitre314/picklescan/security/advisories/GHSA-q77w-mwjj-7mqx · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 04 JUL 01:23Z
    picklescan - Arbitrary Code Execution via Undetected asyncio.unix_events._UnixSubprocessTransport._start
    cvelistv5