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HIGH

CVE-2019-17024

CVSS v3

8.8

HIGH

EPSS Score

2.5 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2019-17024 Red Hat Product Security205 products fixed · 2 known affected

    Mozilla: Memory safety bugs fixed in Firefox 72 and Firefox ESR 68.4

    firefox as a component of Red Hat Enterprise Linux 5 · thunderbird as a component of Red Hat Enterprise Linux 5

  • RHSA-2020:0295 Red Hat Product Security7 products fixed

    Red Hat Security Advisory: firefox security update

  • RHSA-2020:0292 Red Hat Product Security7 products fixed

    Red Hat Security Advisory: thunderbird security update

  • RHSA-2020:0127 Red Hat Product Security7 products fixed

    Red Hat Security Advisory: thunderbird security update

  • RHSA-2020:0120 Red Hat Product Security11 products fixed

    Red Hat Security Advisory: thunderbird security update

  • RHSA-2020:0123 Red Hat Product Security19 products fixed

    Red Hat Security Advisory: thunderbird security update

3 more advisories

Full record on NVD

Description

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.

Technical details

Published
2020-01-08

Frequently asked questions

What is CVE-2019-17024?

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.

Is CVE-2019-17024 actively exploited?

Active exploitation of CVE-2019-17024 has not been confirmed. Its EPSS score was 2.5% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

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

CVE-2019-17024 has a CVSS v3 base score of 8.8 (HIGH severity).

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