Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. 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 < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.

Related CVEs

CVE-2025-10537

Key Information

GHSA ID

GHSA-579p-jcg6-h5r2

Published

September 16, 2025 3:32 PM

Last Modified

September 16, 2025 9:31 PM

CVSS Score

7.5 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: September 22, 2025 6:29 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.