The following table lists the changes that have been made to the
CVE-2025-4921 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.
May. 17, 2025
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Description | An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability affects Firefox < 138.0.4 and Firefox ESR < 128.10.1. | |
| Added | Reference | https://bugzilla.mozilla.org/show_bug.cgi?id=1966614 | |
| Added | Reference | https://www.mozilla.org/security/advisories/mfsa2025-36/ | |
| Added | Reference | https://www.mozilla.org/security/advisories/mfsa2025-37/ |
CVE ID : CVE-2025-10304 Published : Dec. 3, 2025, 3:27 a.m. | 26 minutes ago Description : The Everest Backup –
CVE ID : CVE-2025-12585 Published : Dec. 3, 2025, 3:27 a.m. | 26 minutes ago Description : The MxChat – AI
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