GHSA-6rcf-f85p-pmgjCriticalCVSS 9.8

Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and...

Published
February 24, 2026
Last Modified
June 30, 2026

🔗 CVE IDs covered (1)

📋 Description

Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. 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 < 148 and Firefox ESR < 140.8.

🔗 References (35)