CVE-2026-62433

correct buffer checks for DM_OP hypercalls

High · published July 28, 2026

CVSS v3.1
7.3
EPSS
0%
Percentile
15.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00253 · 15.8th percentile
Published
2026-07-28T12:32Z
EPSS history
Timeline
  • 28 JUL 12:32Z
    correct buffer checks for DM_OP hypercalls
    cvelistv5