Is CVE-2019-5010 being actively exploited?

CVE-2019-5010 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2019-5010?

CVE-2019-5010 has a CVSS 3.1 base score of 7.5 (HIGH).

CVE-2019-5010

HIGH · CVSS 7.5EPSS 20.7%EU EUVD

An exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.6. A specially crafted X509 certificate can cause a NULL pointer dereference, resulting in a denial of service. An attacker can initiate or accept TLS connections using crafted certificates to trigger this vulnerability.

Key facts

CVSS score: 7.5 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-476
EPSS score: 20.7% (98th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2019-14617)
Published: October 31, 2019
NVD last modified: October 7, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2019-14617 in the EU Vulnerability Database. Last updated in EUVD on October 7, 2026.

View on the EU Vulnerability Database

Affected products

debian / debian linux
opensuse / leap
python / python
redhat / enterprise linux
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server tus
redhat / enterprise linux server tus
redhat / enterprise linux server tus

Certified products that may be affected

26 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux 8 NSS Cryptographic Module - Red Hat, Inc. - FIPS 140 5513 - active
Red Hat Enterprise Linux 8 Kernel Cryptographic API - Red Hat, LLC - FIPS 140 5461 - active
Red Hat Enterprise Linux 8 Kernel Cryptographic API - Red Hat, Inc. - FIPS 140 5089 - active
Red Hat Enterprise Linux 8.6 - Red Hat, Inc. - Common Criteria CCEVS-VR-VID-11309-2024 - archived
Red Hat Enterprise Linux 8 OpenSSL Cryptographic Module - Red Hat®, Inc. - FIPS 140 4642 - historical

See all 26 in the Security Certifications Explorer.

References

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html(Mailing List, Third Party Advisory)
https://access.redhat.com/errata/RHSA-2019:3520(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2019:3725(Third Party Advisory)
https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html(Mailing List, Third Party Advisory)
https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html(Mailing List, Third Party Advisory)
https://security.gentoo.org/glsa/202003-26(Third Party Advisory)
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0758(Exploit, Third Party Advisory)

Last updated October 9, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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