Protected-memory access via unchecked CSU pointers
Published Oct 6, 2025 · Updated Oct 6, 2025
Improper address validation in AMD Zynq UltraScale+ PMU Firmware allows local users to read or write protected memory through CSU services. PMU Firmware accepts memory pointers from inter-processor-interrupt messages and forwards them to CSU operations without checking the requester's permitted address ranges. Exploitation requires low-privileged local access to IPI messaging and enabled CSU runtime services, enabling protected-memory disclosure or modification within the device.
Summary
What happened
Improper address validation in AMD Zynq UltraScale+ PMU Firmware allows local users to read or write protected memory through CSU services. PMU Firmware accepts memory pointers from inter-processor-interrupt messages and forwards them to CSU operations without checking the requester's permitted address ranges. Exploitation requires low-privileged local access to IPI messaging and enabled CSU runtime services, enabling protected-memory disclosure or modification within the device.
The record
- CVE
- CVE-2025-0038
- Published
- Oct 6, 2025
- Updated
- Oct 6, 2025
- Vendor
- Advanced Micro Devices, Inc.
- Product
- Kria SOM
- Classifications
- CWE-1284, T1565.001, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 6, 2025CVE publishedPublication date reported by the CVE source.
- Oct 6, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=PMU Firmware version TBD
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.
Weakness, pattern, technique
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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