VULNERABILITY INTELLIGENCE
CVE-2026-62428
CVSS score7.8 HIGH
EPSS probability0.11%
CISA KEVNot currently listed
Published2026-07-28
Last modified2026-07-28
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Description
When grant-copy operations are processed, the respective grant may or may not already be in use by another operation (a mapping or another copy). For all copy operations the referenced guest frame is looked up. When another operation is already active for the grant (the grant is "pinned"), what is being supplied back to actually carry out permission checks and copy operation may not be consistent: The permission check may be carried out on a page different from the one involved in the copy.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-367