CVE-2025-71364

picklescan - Arbitrary Code Execution via Undetected asyncio.unix_events._UnixSubprocessTransport._start

HIGH
8.1
CVSS Score
Published: July 4, 2026 at 01:23 AM UTC
Updated: October 12, 2026 at 07:10 PM UTC
2 products affected across 2 vendorsPicklescanPickleScan

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Severity
HIGH8.1
Exploit prediction
EPSS 0.7%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.0.30
Affected range stops below 0.0.30, so it looks safe — our inference, not a vendor statement
0 ≤ v < 0.0.300
Vendor states this is fixed in 0.0.30 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.1HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-502

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