CVE-2026-5734
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Apr 07, 2026
Vendor
unknown
Description
Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, 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 affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.