CVEs / CVE-2019-6446

CVE-2019-6446: n/a n/a vulnerability

critical 9.8 CVSS 3.0 (NVD)
EPSS 27.2% chance of exploitation in the next 30 days, higher than 98% of CVEs (2 Nov 2026)
Last changed at its sources 20 Oct 2026

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Description

An issue was discovered in NumPy before 1.16.3. It uses the pickle Python module unsafely, which allows remote attackers to execute arbitrary code via a crafted serialized object, as demonstrated by a numpy.load call. NOTE: third parties dispute this issue because it is a behavior that might have legitimate applications in (for example) loading serialized Python object arrays from trusted and authenticated sources.
The CVE record, via NVD · published 16 Jan 2019 · NVD status: Modified

Affected and fixed versions

As stated by the CVE record (from the CNA)
Product	Affected	Fixed in
n/a n/a	n/a	—

As stated by OSV
Product	Affected	Fixed in
numpy (PyPI)	before 1.16.3	1.16.3

Package versions from GHSA-9fq2-x9r6-wfmf.

Exploitation

Not in the CISA Known Exploited Vulnerabilities catalog as of 30 Oct 2026.

Severity

CVSS 3.0	9.8 critical `CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Scored by NVD
Weakness	CWE-502

References

Sources

Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.

This product uses data from the NVD API but is not endorsed or certified by the NVD.