https://seclists.org/oss-sec/2026/q3/309: Xen Security Advisory 505 v2 (CVE-2026-62432) - evtchn: Race between FIFO expand and set
Published Jul 28, 2026
·Updated
Affected Software
1 affected component
Xen Project Xen>=undefined
Frequently Asked Questions
1
What is the severity of CVE-2026-62432?
CVE-2026-62432 has a high severity due to the potential for race conditions that could lead to privilege escalation.
2
How do I fix CVE-2026-62432?
To fix CVE-2026-62432, users should upgrade to the latest version of the Xen Project Xen software, which addresses the vulnerability.
3
What type of vulnerability is CVE-2026-62432?
CVE-2026-62432 is a race condition vulnerability affecting the EVTCHNOP_expand_array functionality in the Xen Project.
4
What systems are affected by CVE-2026-62432?
CVE-2026-62432 affects all versions of the Xen Project Xen software that contain the vulnerable EVTCHNOP_expand_array implementation.
5
When was CVE-2026-62432 publicly disclosed?
CVE-2026-62432 was publicly disclosed on July 28, 2026.