CVE-2021-43534

Katalog CVE

CVSS 8.8 · High EPSS 1,2%

Kerentanan Out-of-bounds Write pada mozilla firefox, mozilla firefox esr +2 lainnya. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. 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 < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Rincian

Terbit di NVD

8 Desember 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

1,2% peluang dieksploitasi; lebih tinggi dari 68,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1606864%2C1712671%2C1730048%2C1735152 broken link · issue tracking · advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-48/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-49/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-50/ advisory vendor
• https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html mailing list · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html mailing list · advisory pihak ketiga
• https://www.debian.org/security/2021/dsa-5026 advisory pihak ketiga
• https://www.debian.org/security/2022/dsa-5034 issue tracking · advisory pihak ketiga