PT-2026-65461 · Xen · Xen
CVE-2026-42493
·
Published
2026-07-28
·
Updated
2026-07-28
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Addressing certain issues, in particular related to operations which may
take excessively long and therefore would need preemption, has turned out
overly costly. Since alternatives (HVM/PVH: HAP, PV: shim) are commonly
available, the decision was to deprecate the functionality, while still
retaining it for people to use at their own (security) risk. Memory-wise
small enough guests may still be okay to run.
Fix
Resource Exhaustion
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Weakness Enumeration
Related Identifiers
Affected Products
Xen