CVE-2025-4093 - CVE House
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Status published Unknown CVE-2025-4093

Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10

Vulnerability Description

Memory safety bug present in Firefox ESR 128.9, and Thunderbird 128.9. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox ESR 128.10 and Thunderbird 128.10.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Andrew McCreight

References

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Affected Vendor

Affected Software

Firefox, Thunderbird
Vulnerable Versions:
128.10

Timeline

Official Publish: April 29th, 2025
Last Modified: April 13th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.