CVE-2025-71351

HIGHPre-NVD 7.67.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (44th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 7.6Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

picklescan before 0.0.25 fails to detect malicious pickle files that use timeit.timeit() in the __reduce__ method, allowing remote code execution. Attackers can craft pickle files that import dangerous libraries like os and execute arbitrary system commands, which evade picklescan detection and execute when pickle.load() is called.

CVSS v3
7.6
EG Score
7.6HIGHmedium confidence
EG Risk
39
EG Risk 39/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity76% × 45%
Exploitation1% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
44th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

June 21, 2026

Last Modified

October 5, 2026

Advisory Details (2)

Auto-updated Jun 22, 2026
🔬 Proof of concept available. Patch available. Sources: github.
githubMentions a patch (unverified)🟡 PoC Available

Missing detection when calling built-in python library function timeit.timeit() · Advisory · mmaitre314/picklescan · GitHub

https://github.com/mmaitre314/picklescan/security/advisories/GHSA-v7x6-rv5q-mhwc
generic

picklescan - Remote Code Execution via timeit.timeit() Detection Bypass | Advisories | VulnCheck

https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-timeit-timeit-detection-bypass

Vendor Advisories for CVE-2025-71351(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
picklescan0.0.1 ... 0.0.9 (24 versions)
  • every version up to 0.0.25: fixed in 0.0.25
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 29× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 247 total refreshes for this CVE.

  1. 2026-10-09 20:06 UTCEPSS rescore
  2. 2026-10-08 17:11 UTCEPSS rescore
  3. 2026-10-07 23:47 UTCEPSS rescore
  4. 2026-10-06 15:17 UTCEPSS rescore
  5. 2026-10-05 17:42 UTCEPSS rescore
  6. 2026-10-05 16:29 UTCEG score recompute
  7. 2026-10-04 23:21 UTCEPSS rescore
  8. 2026-10-03 14:25 UTCEPSS rescore
  9. 2026-10-01 19:49 UTCEPSS rescore
  10. 2026-10-01 19:49 UTCEPSS rescore
  11. 2026-09-30 16:29 UTCEG score recompute
  12. 2026-09-30 15:02 UTCEPSS rescore
  13. 2026-09-29 15:20 UTCEPSS rescore
  14. 2026-09-28 13:50 UTCEPSS rescore
  15. 2026-09-26 15:58 UTCEPSS rescore
  16. 2026-09-24 14:02 UTCEPSS rescore
  17. 2026-09-23 13:47 UTCEPSS rescore
  18. 2026-09-20 20:15 UTCEPSS rescore
  19. 2026-09-18 19:27 UTCEPSS rescore
  20. 2026-09-17 19:30 UTCEPSS rescore
  21. 2026-09-16 14:07 UTCEPSS rescore
  22. 2026-09-16 05:14 UTCEPSS rescore
  23. 2026-09-15 03:10 UTCEPSS rescore
  24. 2026-09-14 02:11 UTCEG score recompute
  25. 2026-09-13 16:46 UTCEPSS rescore
Show 75 more
  1. 2026-09-13 12:52 UTCEG score recompute
  2. 2026-09-12 15:00 UTCEPSS rescore
  3. 2026-09-11 14:52 UTCEPSS rescore
  4. 2026-09-11 09:36 UTCEPSS rescore
  5. 2026-09-10 09:34 UTCEPSS rescore
  6. 2026-09-08 22:00 UTCEPSS rescore
  7. 2026-09-07 16:00 UTCEPSS rescore
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-04 05:06 UTCEPSS rescore
  10. 2026-09-02 14:11 UTCEPSS rescore
  11. 2026-09-01 13:53 UTCEPSS rescore
  12. 2026-08-30 20:42 UTCEG score recompute
  13. 2026-08-30 20:42 UTCGHSA enrichment
  14. 2026-08-30 01:21 UTCEPSS rescore
  15. 2026-08-28 21:40 UTCEPSS rescore
  16. 2026-08-27 14:24 UTCEPSS rescore
  17. 2026-08-26 14:45 UTCEPSS rescore
  18. 2026-08-25 13:48 UTCEPSS rescore
  19. 2026-08-25 02:42 UTCEG score recompute
  20. 2026-08-25 02:42 UTCGHSA enrichment
  21. 2026-08-24 14:16 UTCEPSS rescore
  22. 2026-08-24 13:57 UTCEG score recompute
  23. 2026-08-24 13:57 UTCGHSA enrichment
  24. 2026-08-24 00:27 UTCGHSA enrichment
  25. 2026-08-23 11:41 UTCEG score recompute
  26. 2026-08-23 11:41 UTCGHSA enrichment
  27. 2026-08-23 00:18 UTCEPSS rescore
  28. 2026-08-22 22:57 UTCEG score recompute
  29. 2026-08-22 22:57 UTCGHSA enrichment
  30. 2026-08-21 23:48 UTCEPSS rescore
  31. 2026-08-21 22:22 UTCGHSA enrichment
  32. 2026-08-21 09:26 UTCEG score recompute
  33. 2026-08-21 09:26 UTCGHSA enrichment
  34. 2026-08-20 22:55 UTCEPSS rescore
  35. 2026-08-20 20:41 UTCGHSA enrichment
  36. 2026-08-20 07:54 UTCEG score recompute
  37. 2026-08-20 07:54 UTCGHSA enrichment
  38. 2026-08-19 17:03 UTCEPSS rescore
  39. 2026-08-19 05:48 UTCEG score recompute
  40. 2026-08-19 05:48 UTCGHSA enrichment
  41. 2026-08-18 13:48 UTCEPSS rescore
  42. 2026-08-17 15:10 UTCEG score recompute
  43. 2026-08-17 15:10 UTCGHSA enrichment
  44. 2026-08-17 13:46 UTCEPSS rescore
  45. 2026-08-17 02:25 UTCEG score recompute
  46. 2026-08-17 02:25 UTCGHSA enrichment
  47. 2026-08-16 14:55 UTCEPSS rescore
  48. 2026-08-16 13:40 UTCEG score recompute
  49. 2026-08-16 13:40 UTCGHSA enrichment
  50. 2026-08-16 02:14 UTCEPSS rescore
  51. 2026-08-16 00:55 UTCGHSA enrichment
  52. 2026-08-15 12:10 UTCEG score recompute
  53. 2026-08-15 12:10 UTCGHSA enrichment
  54. 2026-08-15 01:30 UTCEPSS rescore
  55. 2026-08-14 23:25 UTCGHSA enrichment
  56. 2026-08-14 10:40 UTCEG score recompute
  57. 2026-08-14 10:40 UTCGHSA enrichment
  58. 2026-08-13 22:00 UTCEPSS rescore
  59. 2026-08-13 21:55 UTCGHSA enrichment
  60. 2026-08-13 09:10 UTCGHSA enrichment
  61. 2026-08-12 20:25 UTCEG score recompute
  62. 2026-08-12 20:25 UTCGHSA enrichment
  63. 2026-08-12 13:50 UTCEPSS rescore
  64. 2026-08-12 07:41 UTCGHSA enrichment
  65. 2026-08-11 18:55 UTCEG score recompute
  66. 2026-08-11 18:55 UTCGHSA enrichment
  67. 2026-08-11 13:42 UTCEPSS rescore
  68. 2026-08-11 06:10 UTCEG score recompute
  69. 2026-08-11 06:10 UTCGHSA enrichment
  70. 2026-08-10 23:59 UTCEPSS rescore
  71. 2026-08-10 17:26 UTCGHSA enrichment
  72. 2026-08-10 03:41 UTCGHSA enrichment
  73. 2026-08-09 14:56 UTCEG score recompute
  74. 2026-08-09 14:56 UTCGHSA enrichment
  75. 2026-08-09 13:46 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2025-71351?
CVE-2025-71351 is a high vulnerability published on June 21, 2026. picklescan before 0.0.25 fails to detect malicious pickle files that use timeit.timeit() in the reduce method, allowing remote code execution. Attackers can craft pickle files that import dangerous libraries like os and execute arbitrary system commands, which evade picklescan detection and execute…
When was CVE-2025-71351 disclosed?
CVE-2025-71351 was first published on June 21, 2026, with the most recent update on October 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-71351 actively exploited?
CVE-2025-71351 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-71351?
CVE-2025-71351 has a CVSS base score of 7.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2025-71351?
A fix for CVE-2025-71351 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-71351 are linked in the Vendor Advisories panel on this page.

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