https://seclists.org/oss-sec/2026/q2/859: Xen Security Advisory 493 v2 (CVE-2025-10263) - Arm: Completion of memory accesses not guaranteed by completion of a TLBI
Published Jun 9, 2026
·Updated
Affected Software
1 affected component
Xen Project Xen=xen-unstable, =4.21.x, =4.20.x, =4.19.x, =4.18.x, =4.17.x
Frequently Asked Questions
1
What is the severity of CVE-2025-10263?
The severity of CVE-2025-10263 is classified as high due to potential impact on memory access completion.
2
How do I fix CVE-2025-10263?
To fix CVE-2025-10263, update your Xen Project Xen to the latest version that addresses this advisory.
3
What is CVE-2025-10263 about?
CVE-2025-10263 addresses a hardware issue where the completion of memory accesses is not guaranteed by the completion of a TLBI.
4
Which versions of Xen are affected by CVE-2025-10263?
CVE-2025-10263 affects specific versions of Xen Project Xen that do not have the latest security patches installed.
5
What are the potential impacts of CVE-2025-10263?
The potential impacts of CVE-2025-10263 include data corruption and system instability due to memory access issues.