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TI-2024-06136 Aliases CVE-2024-6615GHSA-x2q3-f99c-25ff

Memory safety bugs fixed in Firefox 128 and Thunderbird 128

Priority LOW 38CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Memory safety bugs present in Firefox 127 and Thunderbird 127. 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 < 128 and Thunderbird < 128.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00448 39th percentileScored 2026-11-07
Fix Fixed Firefox (Mozilla): 128Thunderbird (Mozilla): 128

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 128128Patch availableCNA
MozillaThunderbirdbefore 128128Patch availableCNA
  • Firefox VendorMozilla Affected before 128 Fixed in 128 Patch available CNA
  • Thunderbird VendorMozilla Affected before 128 Fixed in 128 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 128.0VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*before 128.0VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 128.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions before 128.0 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 128
  • Fix · CNA Thunderbird (Mozilla) Fixed in 128

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Mozilla Firefox 128

    16 records Highest priority Priority MEDIUM 4 MEDIUM, 12 LOW

    Other records, highest priority first

    • TI-2024-06123 Memory corruption in NSSPriority MEDIUM 51
    • TI-2024-06132 Incorrect handling of SameSite cookiesPriority MEDIUM 50
    • TI-2024-06128 Leaving pointerlock by pressing the escape key could be preventedPriority MEDIUM 41
    Show all 16 records →
  • Release ·

    Mozilla Thunderbird 128

    15 records Highest priority Priority MEDIUM 3 MEDIUM, 12 LOW

    Other records, highest priority first

    • TI-2024-06123 Memory corruption in NSSPriority MEDIUM 51
    • TI-2024-06132 Incorrect handling of SameSite cookiesPriority MEDIUM 50
    • TI-2024-06128 Leaving pointerlock by pressing the escape key could be preventedPriority MEDIUM 41
    Show all 15 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-6615
  2. 2026-10-03 Alias added: GHSA-x2q3-f99c-25ff

References

Advisory 2

Other 1

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences