Kernel memory read and write via integer overflow
Published Feb 11, 2026 · Updated Feb 11, 2026
Integer overflow in AMD atihdwt6.sys allows local users to perform out-of-bounds reads and writes through the graphics driver. AMD has not disclosed the input, arithmetic operation, or driver routine whose size calculation wraps before the out-of-bounds access. Low-privileged local access is required; exploitation needs no user interaction and can disclose or alter memory or interrupt the system.
Summary
What happened
Integer overflow in AMD atihdwt6.sys allows local users to perform out-of-bounds reads and writes through the graphics driver. AMD has not disclosed the input, arithmetic operation, or driver routine whose size calculation wraps before the out-of-bounds access. Low-privileged local access is required; exploitation needs no user interaction and can disclose or alter memory or interrupt the system.
The record
- CVE
- CVE-2024-36320
- Published
- Feb 11, 2026
- Updated
- Feb 11, 2026
- Vendor
- Advanced Micro Devices, Inc.
- Product
- AMD Ryzen™ 7000 Series Desktop Processors
- Classifications
- CWE-190, CAPEC-92, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 11, 2026CVE publishedPublication date reported by the CVE source.
- Feb 11, 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?
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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