CVE-2021-23978

Katalog CVE

CVSS 8.8 · High EPSS 1,5%

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 reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. 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 < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

Rincian

Terbit di NVD

26 Februari 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)

1,5% peluang dieksploitasi; lebih tinggi dari 74,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.mozilla.org/buglist.cgi?bug_id=786797%2C1682928%2C1687391%2C1687597 broken link · issue tracking · advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-07/ release notes · advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-08/ release notes · advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-09/ release notes · advisory vendor
• https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html mailing list · advisory pihak ketiga
• https://security.gentoo.org/glsa/202104-09 advisory pihak ketiga
• https://security.gentoo.org/glsa/202104-10 advisory pihak ketiga
• https://www.debian.org/security/2021/dsa-4866 advisory pihak ketiga