Mozilla developers Nika Layzell, Timothy Nikkel, Sebastian Hengst, Andreas Pehrson, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 104 and Firefox ESR 102.2. 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 ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Related CVEs

CVE-2022-40962

Key Information

GHSA ID

GHSA-wcx8-5vxf-rv69

Published

December 22, 2022 9:30 PM

Last Modified

April 15, 2025 3:30 PM

CVSS Score

7.5 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: November 25, 2025 6:29 AM

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