CVE-2025-4919
published 2025-05-17CVE-2025-4919: 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…
high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
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.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 138.0.4-1 (sid) | firefox 138.0.4-1 (sid) |
| debian | firefox-esr | < firefox 138.0.4-1 (sid) | firefox 138.0.4-1 (sid) |
| debian | thunderbird | < firefox 138.0.4-1 (sid) | firefox 138.0.4-1 (sid) |
| mozilla | firefox | < 115.23.1 | 115.23.1 |
| mozilla | firefox | < 138.0.4 | 138.0.4 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 116.0 < 128.10.1 | 128.10.1 |
| mozilla | thunderbird | < 128.10.2 | 128.10.2 |
| mozilla | thunderbird | >= 0 < 1:128.11.0esr-1~deb11u1 | 1:128.11.0esr-1~deb11u1 |
| mozilla | thunderbird | >= 0 < 1:128.11.0esr-1~deb12u1 | 1:128.11.0esr-1~deb12u1 |
| mozilla | thunderbird | >= 0 < 1:128.11.0esr-1 | 1:128.11.0esr-1 |
| mozilla | thunderbird | >= 0 < 1:128.11.0esr-1 | 1:128.11.0esr-1 |
| mozilla | thunderbird | >= 138.0 < 138.0.2 | 138.0.2 |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
osv8.8HIGH