CVEvulnerability
CVE-2026-42493
7.5 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-07-28
- Last modified
- 2026-07-28
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-400
Description
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.
Related
Weakness · CWE (1)
- CWE-400 Uncontrolled Resource Consumption weakness
References
- https://xenbits.xenproject.org/xsa/advisory-495.html xenbits.xenproject.org
- http://www.openwall.com/lists/oss-security/2026/07/28/12 www.openwall.com
- http://xenbits.xen.org/xsa/advisory-495.html xenbits.xen.org