Local privilege escalation via out-of-bounds write
Published May 15, 2026 · Updated May 15, 2026
Out-of-bounds write in the AMD Platform Management Framework Driver allows local users to escalate privileges on affected Ryzen systems. The driver improperly validates attacker-controlled input before writing outside the intended memory bounds; AMD has not disclosed the affected interface or function. Low-privilege local access is required, and successful exploitation can gain elevated execution with confidentiality, integrity, and availability impact.
Summary
What happened
Out-of-bounds write in the AMD Platform Management Framework Driver allows local users to escalate privileges on affected Ryzen systems. The driver improperly validates attacker-controlled input before writing outside the intended memory bounds; AMD has not disclosed the affected interface or function. Low-privilege local access is required, and successful exploitation can gain elevated execution with confidentiality, integrity, and availability impact.
The record
- CVE
- CVE-2025-52540
- Published
- May 15, 2026
- Updated
- May 15, 2026
- Vendor
- Advanced Micro Devices, Inc.
- Product
- AMD Ryzen 7040 Series Mobile Processors with Radeon Graphics
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 15, 2026CVE publishedPublication date reported by the CVE source.
- May 15, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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