Kernel heap corruption via sparse remapping index
Published Jun 12, 2026 · Updated Jun 12, 2026
Out-of-bounds write in Imagination Technologies Graphics DDK 24.2 RTM and 25.1 RTM through 25.3 RTM allows local users to corrupt kernel heap memory. PMRChangeSparseMemOSMem translates attacker-controlled virtual page indexes into incorrect physical page positions while remapping sparse allocations. A non-privileged process with access to the GPU sparse-memory API can trigger the write, compromising kernel confidentiality, integrity, and availability.
Summary
What happened
Out-of-bounds write in Imagination Technologies Graphics DDK 24.2 RTM and 25.1 RTM through 25.3 RTM allows local users to corrupt kernel heap memory. PMRChangeSparseMemOSMem translates attacker-controlled virtual page indexes into incorrect physical page positions while remapping sparse allocations. A non-privileged process with access to the GPU sparse-memory API can trigger the write, compromising kernel confidentiality, integrity, and availability.
The record
- CVE
- CVE-2026-34195
- Published
- Jun 12, 2026
- Updated
- Jun 12, 2026
- Vendor
- Imagination Technologies
- Product
- Graphics DDK
- Classifications
- CWE-787, CAPEC-8, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 12, 2026CVE publishedPublication date reported by the CVE source.
- Jun 12, 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=24.2 RTM
- Affected versionversion=25.1 RTM <=25.3 RTM
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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