CVE-2026-62433

HIGH

correct buffer checks for DM_OP hypercalls

Title source: cna
STIX 2.1

Description

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 uninitialized.

Scores

CVSS v3 7.3
EPSS 0.0026
EPSS Percentile 18.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-665
Status published
Products (1)
Xen/Xen consult Xen advisory XSA-506
Published Jul 28, 2026
Tracked Since Jul 28, 2026