Kernel memory disclosure via dimension-mismatched truncated index
Published Aug 7, 2026 · Updated Aug 7, 2026
Out-of-bounds read in affected Imagination Technologies Graphics DDK releases allows local users to disclose kernel memory via crafted GPU calls. PMRDevPhysAddrOSMem validates an array index after a dimension mismatch and integer truncation, allowing selection beyond the intended kernel allocation. Non-privileged software must run locally and issue the GPU calls; the access reads kernel memory and in certain cases triggers GPU use-after-free of arbitrary pages.
Summary
What happened
Out-of-bounds read in affected Imagination Technologies Graphics DDK releases allows local users to disclose kernel memory via crafted GPU calls. PMRDevPhysAddrOSMem validates an array index after a dimension mismatch and integer truncation, allowing selection beyond the intended kernel allocation. Non-privileged software must run locally and issue the GPU calls; the access reads kernel memory and in certain cases triggers GPU use-after-free of arbitrary pages.
The record
- CVE
- CVE-2026-49746
- Published
- Aug 7, 2026
- Updated
- Aug 7, 2026
- Vendor
- Imagination Technologies
- Product
- Graphics DDK
- Classifications
- CWE-823, CAPEC-679
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 7, 2026CVE publishedPublication date reported by the CVE source.
- Aug 7, 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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