CVE-2026-74521

Katalog CVE

CVSS 9.1 · Critical EPSS 0,41%

Skor CVSS 3.1 9.1 (Critical) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use memcmp() to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes. strncmp() stops comparing at the first NUL byte, so different ClientGUID values can incorrectly be treated as equal. Use memcmp() in SMB3 multichannel session binding and FSCTL_VALIDATE_NEGOTIATE_INFO to compare all SMB2_CLIENT_GUID_SIZE bytes.

Rincian

Terbit di NVD

15 Agustus 2026

Terakhir diubah

3 Oktober 2026

Status NVD

Received

CVSS 3.1

9.1 (Critical), sumber CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

EPSS (30 hari)

0,41% peluang dieksploitasi; lebih tinggi dari 33,0% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/5a0367bf5ce420be7b19936def2e90adcf32a683
• https://git.kernel.org/stable/c/7bde6f181fa307d2cc1ec2b0313ac8e9811c8232
• https://git.kernel.org/stable/c/a386c83043015a703e227775f778e40343f45911
• https://git.kernel.org/stable/c/ba2a5b66f1d414eb8403d655f8813783892cfc85
• https://git.kernel.org/stable/c/d535363299822c5caa543787b21bd5cfa3e41949
• https://git.kernel.org/stable/c/e8bb506e6ef749ac0336f3e579d8d02396b7d832