AMD ASP Boot Loader Param Sanitization Flaw Enables SPIROM Overwrite Arbitrary Exec
CVE-2025-48515 Published on February 10, 2026
Insufficient parameter sanitization in AMD Secure Processor (ASP) Boot Loader could allow an attacker with access to SPIROM upgrade to overwrite the memory, potentially resulting in arbitrary code execution.
Weakness Type
Integer Overflow or Wraparound
The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. An integer overflow or wraparound occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may wrap to become a very small or negative number. While this may be intended behavior in circumstances that rely on wrapping, it can have security consequences if the wrap is unexpected. This is especially the case if the integer overflow can be triggered using user-supplied inputs. This becomes security-critical when the result is used to control looping, make a security decision, or determine the offset or size in behaviors such as memory allocation, copying, concatenation, etc.
Affected Versions
AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics:- Version RenoirPI-FP6 1.0.0.Ed is unaffected.
- Version CezannePI-FP6_1.0.1.1c is unaffected.
- Version CezannePI-FP6_1.0.1.1c is unaffected.
- Version RenoirPI-FP6_1.0.0.Ec is unaffected.
- Version ComboAM4v2PI_1.2.0.11 is unaffected.
- Version EmbeddedPI-FP6_1.0.0.D 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.