CVE-2026-84121

Katalog CVE

CVSS 9.6 · Critical EPSS 0,32%

Kerentanan Use After Free pada mozilla firefox, mozilla thunderbird. Skor CVSS 3.1 9.6 (Critical) menurut CISA ADP.

Deskripsi (NVD)

Sandbox escape due to use-after-free in the DOM: Security component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.

Rincian

Terbit di NVD

1 September 2026

Terakhir diubah

2 September 2026

Status NVD

Analyzed

CVSS 3.1

9.6 (Critical), sumber CISA ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,32% peluang dieksploitasi; lebih tinggi dari 23,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.mozilla.org/security/advisories/mfsa2026-82/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2026-83/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2026-84/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2026-85/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2026-86/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2026-87/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2026-88/ advisory vendor
• https://bugzilla.mozilla.org/show_bug.cgi?id=2059018 permissions required