CVE-2026-5731

mozilla firefox, mozilla thunderbird

TLP:CLEAR

csirt@kutim:~/threat-intel/cve/CVE-2026-5731

Katalog CVE

CVSS 9.8 · Critical EPSS 0,61%

Kerentanan Improper Restriction of Operations within the Bounds of a Memory Buffer pada mozilla firefox, mozilla thunderbird. Skor CVSS 3.1 9.8 (Critical) menurut CISA ADP.

Deskripsi (NVD)

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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 was fixed in Firefox 149.0.2, Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.

Rincian

Terbit di NVD
7 April 2026
Terakhir diubah
15 Juli 2026
Status NVD
Modified
CVSS 3.1
9.8 (Critical), sumber CISA ADP
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-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787: Out-of-bounds Write
EPSS (30 hari)
0,61% peluang dieksploitasi; lebih tinggi dari 47,7% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
mozilla firefox Versi 115.34.0
mozilla firefox Versi 140.9.0
mozilla firefox Versi 149.0.1
mozilla thunderbird Versi 140.9.0
mozilla thunderbird Versi 149.0.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.