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CVE-2026-5735

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CVE-2026-5735

Published: Apr 7, 2026

Modified: May 10, 2026

PUBLISHED

Description

Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. 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 149.0.2 and Thunderbird 149.0.2.

VendorProductVersions

Mozilla

Firefox

unaffected
149.0.2 - <= *

Mozilla

Thunderbird

unaffected
149.0.2 - <= *

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