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CVE-2019-6446

42
FAUCET Score

CVE-2019-6446 details a critical remote code execution vulnerability in NumPy versions prior to 1.16.3, impacting NumPy and Fedora distributions. This flaw enables remote attackers to execute arbitrary code by exploiting unsafe deserialization of Python pickle objects through a crafted numpy.load call. With a CVSS score of 9.8 (CRITICAL), it poses a severe risk due to its network-based attack vector, low complexity, and complete impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, it is on the "Hot List: Active" with a high EPSS score and significant community discussion, indicating a high potential for exploitation despite no public exploit frameworks.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.16.0CPE matchmatch criteria
cpe:2.3:a:numpy:numpy:*:*:*:*:*:*:*:*
30CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
17.53%
Probability of exploitation in next 30 days
EPSS Percentile
96.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1753 is in the 93rd percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (12)

pippatch availablevia ghsa
Product: numpyFixed in: 1.16.3
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: python27:2.7-8010020190903182548.51c94b97
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: numpy-1:1.14.3-9.el8
View patch
redhatno patchvia redhat_api
Product: Red Hat Ceph Storage 4Fixed in: numpy
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: numpy
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: numpy
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 13 (Queens)Fixed in: numpy
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 14 (Rocky)Fixed in: numpy
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: python27-numpy
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-python35-numpy
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-python36-numpy
redhatend of lifevia redhat_api
Product: Red Hat Virtualization 4Fixed in: rhvm-appliance

Vendor Advisories (2)

pipGHSA-9fq2-x9r6-wfmfcritical

Numpy Deserialization of Untrusted Data

May 24, 2022
redhatCVE-2019-6446Moderate

numpy: crafted serialized object passed in numpy.load() in pickle python module allows arbitrary code execution

Jan 16, 2019

References

lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/7ZZAYIQNUUYXGMKHSPEEXS4TRYFOUYE4
lists.opensuse.org / opensuse-security-announce/2019-09/msg00091.html
lists.opensuse.org / opensuse-security-announce/2019-09/msg00092.html
lists.opensuse.org / opensuse-security-announce/2019-10/msg00015.html
access.redhat.com / errata/RHSA-2019:3335
access.redhat.com / errata/RHSA-2019:3704
bugzilla.suse.com / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
github.com / numpy/numpy/commit/89b688732b37616c9d26623f81aaee1703c30ffb
github.com / numpy/numpy/issues/12759
ExploitIssue TrackingThird Party Advisory
github.com / numpy/numpy/pull/12889
github.com / numpy/numpy/pull/13359
lists.fedoraproject.org / archives/list/[email protected]/message/7ZZAYIQNUUYXGMKHSPEEXS4TRYFOUYE4
securityfocus.com / bid/106670
Third Party AdvisoryVDB Entry