CVE-2025-61971
AMD SEV-SNP MMIO Routing Configuration Modification Vulnerability
Description
Missing lock bit protection for NBIO registers could allow a local admin-privileged attacker to modify MMIO routing configurations, potentially resulting in loss of SEV-SNP guest integrity.
INFO
Published Date :
May 13, 2026, 3:02 a.m.
Last Modified :
May 13, 2026, 3:02 a.m.
Remotely Exploit :
No
Source :
AMD
Affected Products
The following products are affected by CVE-2025-61971
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
- Enable lock bit protection for NBIO registers.
- Ensure proper access controls for MMIO routing.
- Apply vendor-specific security patches or updates.
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-2025-61971 vulnerability anywhere in the article.