CVE-2026-28247
AMD SEV Improper Access Control Vulnerability
Description
Improper Access Control Applied to Mirrored or Aliased Memory Regions in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to change the encryption bit for guest context pages potentially resulting in loss of integrity.
INFO
Published Date :
Nov. 10, 2026, 10:11 p.m.
Last Modified :
Nov. 10, 2026, 10:11 p.m.
Remotely Exploit :
No
Source :
AMD
Affected Products
The following products are affected by CVE-2026-28247
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | b58fc414-a1e4-4f92-9d70-1add41838648 |
Solution
- Update AMD SEV firmware to the latest version.
- Apply patches for affected systems.
- Verify access controls on memory regions.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-28247 vulnerability anywhere in the article.