CVE-2026-23558 - CERT CVE
ID CVE-2026-23558
Sažetak 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.
Reference
CVSS
Base: 7.8
Impact: 6.0
Exploitability:1.1
Pristup
VektorSloženostAutentikacija
LOCAL HIGH LOW
Impact
PovjerljivostCjelovitostDostupnost
HIGH HIGH HIGH
CVSS vektor CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Zadnje važnije ažuriranje 19-05-2026 - 18:55
Objavljeno 19-05-2026 - 14:16