CVE-2019-6446
CVSS v3
9.8
CRITICAL
EPSS Score
17.5 %
exploit probability, as of 2026-10-05
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2019-01-16
Frequently asked questions
What is CVE-2019-6446?
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.
Is CVE-2019-6446 actively exploited?
Active exploitation of CVE-2019-6446 has not been confirmed. Its EPSS score was 17.5% on 2026-10-05, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-6446?
CVE-2019-6446 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2019-6446 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 50 free checks/month · Free API key
Other 2019 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).