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CVE-2026-7323

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CVE-2026-7323

Published: Apr 28, 2026

Modified: May 7, 2026

PUBLISHED

Description

Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.

VendorProductVersions

Mozilla

Firefox

unaffected
140.10.1 - <= 140.*
unaffected
150.0.1 - <= *

Mozilla

Thunderbird

unaffected
140.10.1 - <= 140.*
unaffected
150.0.1 - <= *

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