CVE-2021-4129

Katalog CVE

CVSS 9.8 · Critical EPSS 1,0%

Kerentanan Out-of-bounds Write pada mozilla firefox, mozilla firefox esr +1 lainnya. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian Holler, and Masayuki Nakano reported memory safety bugs present in Firefox 94. 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 < 95, Firefox ESR < 91.4.0, and Thunderbird < 91.4.0.

Rincian

Terbit di NVD

22 Desember 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

1,0% peluang dieksploitasi; lebih tinggi dari 62,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1393362%2C1736046%2C1736751%2C1737009%2C1739372%2C1739421 exploit · issue tracking · advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-52/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-53/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-54/ advisory vendor