CVE-2026-62428
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
28/07/2026
Last modified:
28/07/2026
Description
When grant-copy operations are processed, the respective grant may or may<br />
not already be in use by another operation (a mapping or another copy).<br />
For all copy operations the referenced guest frame is looked up. When<br />
another operation is already active for the grant (the grant is "pinned"),<br />
what is being supplied back to actually carry out permission checks and<br />
copy operation may not be consistent: The permission check may be carried<br />
out on a page different from the one involved in the copy.
Impact
Base Score 3.x
7.80
Severity 3.x
HIGH