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HIGH

CVE-2024-2607

CVSS v3

8.1

HIGH

EPSS Score

1.1 %

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.

Packages

  • firefoxAlmaLinux:9all versions · fixed in 115.9.1-1.el9_3.alma.1and 1 other package
  • firefoxAlmaLinux:8all versions · fixed in 115.9.1-1.el8_9.alma.1
  • thunderbirdAlmaLinux:9all versions · fixed in 115.9.0-1.el9_3.alma.1
  • thunderbirdAlmaLinux:8all versions · fixed in 115.9.0-1.el8_9.alma.1

Vendor advisories

  • CVE-2024-2607 Red Hat Product Security305 products fixed · 4 known affected

    Mozilla: JIT code failed to save return registers on Armv7-A

    firefox as a component of Red Hat Enterprise Linux 6 · firefox.src as a component of Red Hat Enterprise Linux 6 · thunderbird as a component of Red Hat Enterprise Linux 6

  • RHSA-2024:1486 Red Hat Product Security21 products fixed

    Red Hat Security Advisory: firefox security update

  • RHSA-2024:1496 Red Hat Product Security13 products fixed

    Red Hat Security Advisory: thunderbird security update

  • RHSA-2024:1497 Red Hat Product Security13 products fixed

    Red Hat Security Advisory: thunderbird security update

  • RHSA-2024:1500 Red Hat Product Security15 products fixed

    Red Hat Security Advisory: thunderbird security update

  • RHSA-2024:1498 Red Hat Product Security11 products fixed

    Red Hat Security Advisory: thunderbird security update

13 more advisories

Full record on NVD

Description

Return registers were overwritten which could have allowed an attacker to execute arbitrary code. *Note:* This issue only affected Armv7-A systems. Other operating systems are unaffected. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.

Technical details

Published
2024-03-19

Frequently asked questions

What is CVE-2024-2607?

Return registers were overwritten which could have allowed an attacker to execute arbitrary code. *Note:* This issue only affected Armv7-A systems. Other operating systems are unaffected. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.

Is CVE-2024-2607 actively exploited?

Active exploitation of CVE-2024-2607 has not been confirmed. Its EPSS score was 1.1% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-2607?

CVE-2024-2607 has a CVSS v3 base score of 8.1 (HIGH severity).

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