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CVE Record

CVE-2025-71368: picklescan - Arbitrary Code Execution via Undetected doctest.debug_script

picklescan before 0.0.30 fails to detect the doctest.debug_script function when analyzing pickle files, allowing attackers to execute arbitrary code. Remote attackers can craft malicious pickle files embedding doctest.debug_script calls that bypass picklescan detection and execute arbitrary commands upon pickle.load invocation.

HighCVSS 8.1Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This flaw affects organizations that use picklescan to screen Python pickle files before loading them. A malicious pickle could pass scanning because a dangerous doctest function was not detected, then run code when another process loads it. The business risk is highest where untrusted model, data, or artifact files are accepted from outside parties.

Executive priority

Prioritize this for teams handling external ML models, datasets, or serialized Python artifacts. It is not listed as actively exploited in the provided sources, but the impact is high because a trusted scanning control can fail before code execution.

Technical view

picklescan before 0.0.30 did not detect doctest.debug_script in pickle analysis. The CVE describes a CWE-502 deserialization risk: a crafted pickle can evade picklescan detection and execute arbitrary commands when pickle.load is later invoked. CVSS 3.1 is 8.1, with network attack vector, low complexity, no privileges, and required user interaction.

Likely exposure

Exposure is likely in ML, data science, CI, or artifact-ingestion workflows that rely on picklescan as a gate before loading pickle files. Systems that never process untrusted pickle files have lower practical exposure.

Exploitation context

The bundle does not show KEV listing or confirmed active exploitation. Exploitation requires a target workflow to receive a malicious pickle and later load it. The source bundle supports bypass and code execution risk, but not public weaponization status.

Researcher notes

Focus validation on trust boundaries around pickle ingestion, not only package presence. The key evidence is a missed dangerous global involving doctest.debug_script. The record supports arbitrary code execution on later deserialization, but does not provide exploit-in-the-wild evidence.

Mitigation direction

  • Upgrade picklescan to 0.0.30 or later per vendor guidance.
  • Avoid loading pickle files from untrusted or unauthenticated sources.
  • Treat prior picklescan approvals of external pickle files as unreliable.
  • Add policy controls for model and artifact provenance.
  • Check vendor advisories for any additional fix guidance.

Validation and detection

  • Inventory systems and pipelines that install or invoke picklescan.
  • Confirm deployed picklescan versions are not earlier than 0.0.30.
  • Identify workflows that call pickle.load on externally supplied files.
  • Review recent accepted pickle artifacts from untrusted sources.
  • Verify dependency lockfiles and container images include the fixed version.
Prepared
Confidence
high
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-502: Code execution behavior lookup

Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2025-71368 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.1 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
3Timeline events
1ADP providers
3Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: total

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.1CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N2.85.2VulnCheck
7.6CVSS 4.0HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NVulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

7.6High
CVSS 4.0 vector shape for CVE-2025-71368Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
picklescanpicklescan0, 0.0.30unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-502 · source CWE mapping

Deserialization of Untrusted Data

Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.