vulnerability
Ubuntu: USN-7561-1 (CVE-2023-31356): AMD Microcode vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:L/Au:M/C:N/I:C/A:N) | Aug 13, 2024 | Jun 10, 2025 | Mar 27, 2026 |
Severity
4
CVSS
(AV:L/AC:L/Au:M/C:N/I:C/A:N)
Published
Aug 13, 2024
Added
Jun 10, 2025
Modified
Mar 27, 2026
Description
Incomplete system memory cleanup in SEV firmware could
allow a privileged attacker to corrupt guest private memory, potentially
resulting in a loss of data integrity.
Solution
ubuntu-upgrade-amd64-microcode
References
- CVE-2023-31356
- https://attackerkb.com/topics/CVE-2023-31356
- CWE-459
- EUVD-EUVD-2023-35667
- UBUNTU-USN-7561-1
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-35667
- https://lore.kernel.org/all/[email protected]/
- https://ubuntu.com/security/notices/USN-7561-1
- https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html
- https://www.cve.org/CVERecord?id=CVE-2023-31356
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.