CVE-2026-23554
7.8
HIGH
CVSS 3.1
EPSS 0.13%
描述
The Intel EPT paging code uses an optimization to defer flushing of any cached EPT state until the p2m lock is dropped, so that multiple modifications done under the same locked region only issue a single flush. Freeing of paging structures however is not deferred until the flushing is done, and can result in freed pages transiently being present in cached state. Such stale entries can point to memory ranges not owned by the guest, thus allowing access to unintended memory regions.
如何修補 CVE-2026-23554
要修補 CVE-2026-23554,請將受影響套件升級到下列已修補版本。
- —升級至 4.18.5-r5 或更新版本
CVE-2026-23554 正在被利用嗎?
低 — EPSS 為 0.1%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- >= 4.17, < 4.18.5-r5
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |