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CVE-2025-0247

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CVE-2025-0247

Published: Jan 7, 2025

Modified: May 20, 2026

PUBLISHED

Description

Memory safety bugs present in Firefox 133 and Thunderbird 133. 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 was fixed in Firefox 134 and Thunderbird 134.

VendorProductVersions

Mozilla

Firefox

unaffected
134 - <= *

Mozilla

Thunderbird

unaffected
134 - <= *

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