What is CVE-2026-62433?

CVE-2026-62433 is a high-severity vulnerability in Xen, classified under Improper Initialization. CVSS score: 7.3/10. Published 2026-07-28.

How severe is CVE-2026-62433?

High severity. CVSS v3 base score is 7.3 out of 10.

Vulnerability in Xen

CVE-2026-62433

Parts of the DM_OP handling code assumes the caller has provided the required number of buffers for the given operation without any checking being done. As a result, certain operations might access stack rubble as structures are possibly…

Vulnerability class: Dirty Pipe (CVE-2022-0847)

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Xen — versions consult Xen advisory XSA-506

Weakness classification (CWE)

CWE-665 — Improper Initialization

References

security@xen.org
af854a3a-2127-422b-91ae-364da2661108
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-62433?: CVE-2026-62433 is a high-severity vulnerability in Xen, classified under Improper Initialization. CVSS score: 7.3/10. Published 2026-07-28.
How severe is CVE-2026-62433?: High severity. CVSS v3 base score is 7.3 out of 10.