CVE-2025-4919 — Out-of-bounds access when optimizing linear sums
An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability was fixed in Firefox 138.0.4, Firefox ES…
Published: 2025-05-17 · CVSS: 8.8 · CVSS 3.1
An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability was fixed in Firefox 138.0.4, Firefox ESR 128.10.1, Firefox ESR 115.23.1, Thunderbird 128.10.2, and Thunderbird 138.0.2.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7