CVE-2026-7323
HIGHMemory 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: cnaDescription
Memory safety bugs present in Firefox ESR 140.10.0 and Firefox 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 and Firefox ESR 140.10.1.
References (5)
Scores
CVSS v3
7.3
EPSS
0.0004
EPSS Percentile
13.3%
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 (4)
Mozilla/Firefox
140.10.1 - 140.*
Mozilla/Firefox
150.0.1
Mozilla/Thunderbird
140.10.1 - 140.*
Mozilla/Thunderbird
150.0.1
Published
Apr 28, 2026
Tracked Since
Apr 28, 2026