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CVE-2026-79603
MEDIUM(4.3)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Risk Signal Score11/100 — NIEDRIG
- CVSS 4.3 — Mittel
Erwähnungen (letzte 60 Tage)
Artikel
EPSS-Score
0.2%
Exploit-Wahrscheinlichkeit (30 Tage)
CVSS Score
4.3
Technische Schwere
Beschreibung
x86 PV guests can free memory pages while still keeping a stale TLB entry pointing to them. A TLB flush is only issued by Xen (if needed) when the page is re-used. Since it's possible for the page to be scrubbed ahead of the TLB flush, there's a window where a PV guest can modify an already scrubbed page.