CVE-2026-63940

Katalog CVE

CVSS 9.3 · Critical EPSS 0,20%

Skor CVSS 3.1 9.3 (Critical) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Ignore Port I/O requests of length '0' Explicitly ignore Port I/O requests of length '0' (or count '0'), so that setting up the software scratch area (and other code) doesn't have to worry about underflowing the length, and to allow for WARNing on trying to configure the scratch area with len==0.

Rincian

Terbit di NVD

19 Juli 2026

Terakhir diubah

27 Juli 2026

Status NVD

Awaiting Analysis

CVSS 3.1

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

EPSS (30 hari)

0,20% peluang dieksploitasi; lebih tinggi dari 8,5% 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/2254972d4d69e279ba4e87bf0968eb08ad0d3c92
• https://git.kernel.org/stable/c/3988bd2723de407ae90fa7a6f6029b4e60238c58
• https://git.kernel.org/stable/c/3b6035bc6bff20e89752ce4358bc4c9a9d5883f2
• https://git.kernel.org/stable/c/c30cde934c7813b4e3069765dac64ce3d31e34f2