CVE-2026-4729

Katalog CVE

CVSS 9.8 · Critical EPSS 0,46%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada mozilla firefox, mozilla thunderbird. Skor CVSS 3.1 9.8 (Critical) menurut CISA ADP.

Deskripsi (NVD)

Memory safety bugs present in Firefox 148 and Thunderbird 148. 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 and Thunderbird 149.

Rincian

Terbit di NVD

24 Maret 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-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-825: Expired Pointer Dereference

EPSS (30 hari)

0,46% peluang dieksploitasi; lebih tinggi dari 38,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.mozilla.org/security/advisories/mfsa2026-20/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2026-23/ advisory vendor
• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1944033%2C1997282%2C2009213%2C2011412%2C2021925%2C2022034 broken link
• https://access.redhat.com/security/cve/CVE-2026-4729
• https://bugzilla.redhat.com/show_bug.cgi?id=2450745
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4729.json