CVE-2026-23558

Katalog CVE

CVSS 7.8 · High EPSS 0,12%

Kerentanan Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') pada xen. Skor CVSS 3.1 7.8 (High) menurut CISA ADP.

Deskripsi (NVD)

The adjustments made for XSA-379 as well as those subsequently becoming XSA-387 still left a race window, when a HVM or PVH guest does a grant table version change from v2 to v1 in parallel with mapping the status page(s) via XENMEM_add_to_physmap. Some of the status pages may then be freed while mappings of them would still be inserted into the guest's secondary (P2M) page tables.

Rincian

Terbit di NVD

19 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

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

EPSS (30 hari)

0,12% peluang dieksploitasi; lebih tinggi dari 1,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://xenbits.xenproject.org/xsa/advisory-486.html mitigasi · patch · advisory vendor
• http://xenbits.xen.org/xsa/advisory-486.html mitigasi · patch · advisory vendor
• http://www.openwall.com/lists/oss-security/2026/04/28/13 mailing list · mitigasi · patch · advisory pihak ketiga