Arbitrary physical-memory access via truncated PMR offsets
Published Jul 24, 2026 · Updated Jul 24, 2026
Integer overflow in Imagination Technologies Graphics DDK allows local users to read or write arbitrary physical memory via GPU system calls. _PMRLogicalOffsetToPhysicalOffset truncates physical-offset calculations to 32 bits while resolving sparse PMRs larger than 4 GB, producing incorrect GPU MMU mappings. Locally installed software running as a non-privileged user can reach the kernel-module path; resulting mappings expose memory outside the intended buffer.
Summary
What happened
Integer overflow in Imagination Technologies Graphics DDK allows local users to read or write arbitrary physical memory via GPU system calls. _PMRLogicalOffsetToPhysicalOffset truncates physical-offset calculations to 32 bits while resolving sparse PMRs larger than 4 GB, producing incorrect GPU MMU mappings. Locally installed software running as a non-privileged user can reach the kernel-module path; resulting mappings expose memory outside the intended buffer.
The record
- CVE
- CVE-2026-16280
- Published
- Jul 24, 2026
- Updated
- Jul 24, 2026
- Vendor
- Imagination Technologies
- Product
- Graphics DDK
- Classifications
- CWE-190, CAPEC-679, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 24, 2026CVE publishedPublication date reported by the CVE source.
- Jul 24, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.18 RTM2
- Affected versionversion=23.2 RTM2
- Affected versionversion=24.2 RTM2
- Affected versionversion=25.1 RTM2 <=25.3 RTM
- Affected versionversion=26.1 RTM1
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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