Missing RMP Init Checks Allow Local Admin to Corrupt Guest Memory Integrity
CVE-2025-48509 Published on February 10, 2026
Missing Checks in certain functions related to RMP initialization can allow a local admin privileged attacker to cause misidentification of I/O memory, potentially resulting in a loss of guest memory integrity
Weakness Type
Improper Initialization
The software does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. This can have security implications when the associated resource is expected to have certain properties or values, such as a variable that determines whether a user has been authenticated or not.
Affected Versions
AMD EPYC™ 9004 Series Processors:- Version GenoaPI 1.0.0.F is unaffected.
- Version MilanPI 1.0.0.H is unaffected.
- Version TurinPI 1.0.0.5 is unaffected.
- Version GenoaPI 1.0.0.F is unaffected.
- Version EmbMilanPI-SP3 v9 1.0.0.C is unaffected.
- Version EmbGenoaPI-SP5 1.0.0.B is unaffected.
- Version EmbTurinPI-SP5_1.0.0.1 is unaffected.
- Version EmbGenoaPI-SP5 1.0.0.B is unaffected.
- Version EmbGenoaPI-SP5 1.0.0.B is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.