https://seclists.org/oss-sec/2026/q1/327: Xen Security Advisory 480 v3 (CVE-2026-23554) - Use after fe of paging structus in EPT
Published Mar 17, 2026
·Updated
Affected Software
1 affected component
XEN Xen>=4.17
Frequently Asked Questions
1
What is the severity of CVE-2026-23554?
CVE-2026-23554 has been classified as a high severity vulnerability.
2
How do I fix CVE-2026-23554?
To fix CVE-2026-23554, update your Xen environment to the latest version that addresses this vulnerability.
3
What systems are affected by CVE-2026-23554?
CVE-2026-23554 affects all versions of Xen that utilize Intel EPT paging code.
4
What is the exploit mechanism for CVE-2026-23554?
CVE-2026-23554 can be exploited via a use after free vulnerability in the paging structures.
5
What is the impact of CVE-2026-23554 on system security?
The impact of CVE-2026-23554 may allow an attacker to gain elevated privileges on the affected systems.