CVE-2026-63938

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: Check PSC request indices against the actual size of the buffer When processing Page State Change (PSC) requests, validate the PSC buffer against the effective size of the scratch area, which could be less than the maximum size if the guest provided a pointer that isn't exactly at the start of the GHCB shared buffer.

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/121d88de56bc5c0ba0ce2f6381af67f948a7e7c1
• https://git.kernel.org/stable/c/505a3b94535583e4265360e2621734e355ef263d
• https://git.kernel.org/stable/c/5198f70c09a5f6e9e5f5a0a2c6b388f24294b176
• https://git.kernel.org/stable/c/75c8d1d7291268b479794fba5808971dc2f5eaf3