CVE-2025-4918
An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. 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 products
- Alt Linux, Almalinux, Astra Linux, Centos, Debian, Firefox Esr, Linuxmint, Red Hat
- Mozilla Firefox
- < 115.23.1, 138.0.4, 128.10.1
- Mozilla Thunderbird
- < 128.10.2, 138.0.2
- Fix
- Available
- CVSS 3.1
- 9.8 CRITICAL
- EPSS
- 8.9% (95th percentile)
- Weakness
- CWE-787, CWE-125
- NVD status
- Modified
- Published
- 2025-05-17
CVE-2025-4918 at NVD
No indexed exploits for CVE-2025-4918 yet
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No exploit for CVE-2025-4918 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.