Is CVE-2019-17024 being actively exploited?

CVE-2019-17024 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2019-17024?

CVE-2019-17024 has a CVSS 3.1 base score of 8.8 (HIGH).

CVE-2019-17024

HIGH · CVSS 8.8EPSS 2.5%EU EUVD

Mozilla developers reported memory safety bugs present in Firefox 71 and Firefox ESR 68.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

Key facts

CVSS score: 8.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-787
EPSS score: 2.5% (84th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2019-7498)
Published: January 8, 2020
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2019-7498 in the EU Vulnerability Database. Last updated in EUVD on August 5, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
debian / debian linux
debian / debian linux
debian / debian linux
mozilla / firefox
mozilla / firefox esr
opensuse / leap
redhat / enterprise linux
redhat / enterprise linux desktop
redhat / enterprise linux desktop
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux server
redhat / enterprise linux server
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
redhat / enterprise linux workstation
redhat / enterprise linux workstation

Certified products that may be affected

25 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 OpenSSL Cryptographic Module - Red Hat®, Inc. - FIPS 140 4642 - historical
Red Hat Enterprise Linux 8 NSS Cryptographic Module - Red Hat®, Inc. - FIPS 140 4458 - historical

See all 25 in the Security Certifications Explorer.

References

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00043.html(Mailing List, Third Party Advisory)
http://packetstormsecurity.com/files/155912/Slackware-Security-Advisory-mozilla-thunderbird-Updates.html(Exploit, Third Party Advisory, VDB Entry)
https://access.redhat.com/errata/RHSA-2020:0085(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2020:0086(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2020:0111(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2020:0120(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2020:0123(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2020:0127(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2020:0292(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2020:0295(Third Party Advisory)
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1507180%2C1595470%2C1598605%2C1601826(Issue Tracking, Vendor Advisory)
https://lists.debian.org/debian-lts-announce/2020/01/msg00005.html(Mailing List, Third Party Advisory)
https://lists.debian.org/debian-lts-announce/2020/01/msg00016.html(Mailing List, Third Party Advisory)
https://seclists.org/bugtraq/2020/Jan/12(Mailing List, Third Party Advisory)
https://seclists.org/bugtraq/2020/Jan/18(Mailing List, Third Party Advisory)
https://seclists.org/bugtraq/2020/Jan/26(Mailing List, Third Party Advisory)
https://security.gentoo.org/glsa/202003-02(Third Party Advisory)
https://usn.ubuntu.com/4234-1/(Third Party Advisory)
https://usn.ubuntu.com/4241-1/(Third Party Advisory)
https://usn.ubuntu.com/4335-1/(Third Party Advisory)
https://www.debian.org/security/2020/dsa-4600(Third Party Advisory)
https://www.debian.org/security/2020/dsa-4603(Third Party Advisory)
https://www.mozilla.org/security/advisories/mfsa2020-01/(Vendor Advisory)
https://www.mozilla.org/security/advisories/mfsa2020-02/(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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