https://seclists.org/oss-sec/2026/q3/305: Xen Security Advisory 501 v4 (CVE-2026-62435,CVE-2026-62436) - grant-table: version change racing with other operations
Published Jul 28, 2026
·Updated
Affected Software
1 affected component
Xen Project Xen>=undefined, >=4.0<=4.12
Frequently Asked Questions
1
What is the severity of CVE-2026-62435 and CVE-2026-62436?
The severity of CVE-2026-62435 and CVE-2026-62436 is categorized as medium due to the potential for version change racing in grant-table operations.
2
How do I fix CVE-2026-62435 and CVE-2026-62436?
To fix CVE-2026-62435 and CVE-2026-62436, ensure you apply the latest Xen Project updates that address this advisory.
3
What impact does CVE-2026-62435 have on Xen Project systems?
CVE-2026-62435 can lead to serious inconsistencies during grant-table version changes, potentially affecting the stability of the Xen environment.
4
What are the affected versions for CVE-2026-62435 and CVE-2026-62436?
CVE-2026-62435 and CVE-2026-62436 affect specific versions of the Xen Project, detailed in the Xen Security Advisory XSA-501.
5
Is there a workaround for CVE-2026-62435 and CVE-2026-62436 if updates cannot be applied immediately?
There are no specific workarounds recommended for CVE-2026-62435 and CVE-2026-62436, so applying the updates is essential for mitigation.