CVE-2026-62428

Katalog CVE

CVSS 7.8 · High EPSS 0,11%

Kerentanan Time-of-check Time-of-use (TOCTOU) Race Condition. Skor CVSS 3.1 7.8 (High) menurut CISA ADP.

Deskripsi (NVD)

When grant-copy operations are processed, the respective grant may or may not already be in use by another operation (a mapping or another copy). For all copy operations the referenced guest frame is looked up. When another operation is already active for the grant (the grant is "pinned"), what is being supplied back to actually carry out permission checks and copy operation may not be consistent: The permission check may be carried out on a page different from the one involved in the copy.

Rincian

Terbit di NVD

28 Juli 2026

Terakhir diubah

28 Juli 2026

Status NVD

Deferred

CVSS 3.1

7.8 (High), sumber CISA ADP
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

EPSS (30 hari)

0,11% peluang dieksploitasi; lebih tinggi dari 1,4% 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://xenbits.xenproject.org/xsa/advisory-500.html
• http://www.openwall.com/lists/oss-security/2026/07/28/16
• http://xenbits.xen.org/xsa/advisory-500.html