How severe is CVE-2025-71351?

CVE-2025-71351 has a CVSS 4.0 base score of 7.6, rated high severity.

Is CVE-2025-71351 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-71351?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-71351 have an EU (EUVD) identifier?

Yes. CVE-2025-71351 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-210292.

When was CVE-2025-71351 published?

CVE-2025-71351 was published on 2026-06-21 and last updated on 2026-06-22.

CVE-2025-71351

CVE-2025-71351 is a high-severity vulnerability with a CVSS 4.0 base score of 7.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-184.

Key facts

Severity: High (CVSS 4.0 base score 7.6)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-210292
Weakness: CWE-184
Published: 2026-06-21
Last modified: 2026-06-22

Description

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.

Frequently asked questions

What is CVE-2025-71351?: 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.
How severe is CVE-2025-71351?: CVE-2025-71351 has a CVSS 4.0 base score of 7.6, rated high severity.
Is CVE-2025-71351 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-71351?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-71351 have an EU (EUVD) identifier?: Yes. CVE-2025-71351 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-210292.
When was CVE-2025-71351 published?: CVE-2025-71351 was published on 2026-06-21 and last updated on 2026-06-22.

References

Other CWE-184 vulnerabilities

CVE-2026-28363 — Critical (CVSS 9.9): In OpenClaw before 2026.2.23, tools.exec.safeBins validation for sort could be bypassed via GNU long-option…
CVE-2026-56315 — Critical (CVSS 9.8): picklescan before 1.0.4 fails to block at least seven Python standard library modules (including uuid, _osx_support,…
CVE-2026-53873 — Critical (CVSS 9.8): picklescan before 1.0.4 contains an incomplete blocklist for the profile module that fails to block the module-level…
CVE-2025-71323 — Critical (CVSS 9.8): picklescan before 0.0.33 fails to block the ctypes module, allowing attackers to achieve remote code execution by…
CVE-2025-71320 — Critical (CVSS 9.8): picklescan before 0.0.33 contains an incomplete deny-list that fails to block pydoc.locate and operator.methodcaller…
CVE-2026-41264 — Critical (CVSS 9.8): Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the specific…

Browse all CWE-184 vulnerabilities →