CVE-2026-79603 (GCVE-0-2026-79603)
Vulnerability from cvelistv5
Published
2026-09-08 12:11
Modified
2026-09-08 17:08
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
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.
References
Impacted products
Vendor Product Version
Xen Xen Create a notification for this product.
Show details on NVD website

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