CVE-2026-7323

HIGH

Memory safety bugs fixed in Firefox ESR 140.10.1, Thunderbird ESR 140.10.1, Firefox 150.0.1 and Thunderbird 150.0.1

Title source: cna
STIX 2.1

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.

References (30)

Core 30
Core References
Memory safety bugs fixed in Firefox ESR 140.10.1, Thunderbird ESR 140.10.1, Firefox 150.0.1 and Thunderbird 150.0.1
https://bugzilla.mozilla.org/buglist.cgi?bug_id=2028537%2C2029911%2C2031121%2C2033602

Scores

CVSS v3 7.3
EPSS 0.0037
EPSS Percentile 30.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-119 CWE-787
Status published
Products (8)
mozilla/firefox < 140.10.1
mozilla/firefox < 150.0.1
Mozilla/Firefox 140.10.1 - 140.*
Mozilla/Firefox 150.0.1
mozilla/thunderbird < 140.10.1
mozilla/thunderbird < 150.0.1
Mozilla/Thunderbird 140.10.1 - 140.*
Mozilla/Thunderbird 150.0.1
Published Apr 28, 2026
Tracked Since Apr 28, 2026