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CVE-2025-4093

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CVE-2025-4093

Published: Apr 29, 2025

Modified: Apr 13, 2026

PUBLISHED

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.

VendorProductVersions

Mozilla

Firefox

unaffected
128.10 - <= *

Mozilla

Thunderbird

unaffected
128.10 - <= *

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