CVE-2026-42487

Katalog CVE

CVSS 7.9 · High EPSS 0,10%

Kerentanan Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'). Skor CVSS 3.1 7.9 (High) menurut CISA ADP.

Deskripsi (NVD)

HVM guest I/O port accesses are subject to either emulation or at least translation. Translations are managed by the device model (via XEN_DOMCTL_ioport_mapping), and hence the linked list used may changed at any time. Traversal of those lists (while handling guest I/O port accesses) therefore needs synchronizing with updates, which was missing so far.

Rincian

Terbit di NVD

18 Juni 2026

Terakhir diubah

22 Juni 2026

Status NVD

Deferred

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

EPSS (30 hari)

0,10% peluang dieksploitasi; lebih tinggi dari 0,6% 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-491.html
• http://www.openwall.com/lists/oss-security/2026/06/09/11
• http://xenbits.xen.org/xsa/advisory-491.html