Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. 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 < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00334}

epss

{'score': 0.00388}


cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-04T01:44:22.811Z

Reserved: 2021-08-10T00:00:00

Link: CVE-2021-38501

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-11-03T01:15:07.617

Modified: 2024-11-21T06:17:15.470

Link: CVE-2021-38501

cve-icon Redhat

Severity : Important

Publid Date: 2021-10-05T00:00:00Z

Links: CVE-2021-38501 - Bugzilla

cve-icon OpenCVE Enrichment

No data.