Firmware memory overwrite via insufficient rgxfw_to_ptr validation
Published Jun 1, 2026 · Updated Jun 1, 2026
Out-of-bounds write in Imagination Technologies Graphics DDK 26.1 RTM1 and earlier allows attackers to alter GPU firmware memory. UFO update processing passes a firmware address through rgxfw_to_ptr(), whose translation logic fails to reject an out-of-range pointer before a write. Exploitation requires kernel software inside a host or guest VM to post crafted GPU firmware commands; the documented consequence is firmware-memory integrity loss.
Summary
What happened
Out-of-bounds write in Imagination Technologies Graphics DDK 26.1 RTM1 and earlier allows attackers to alter GPU firmware memory. UFO update processing passes a firmware address through rgxfw_to_ptr(), whose translation logic fails to reject an out-of-range pointer before a write. Exploitation requires kernel software inside a host or guest VM to post crafted GPU firmware commands; the documented consequence is firmware-memory integrity loss.
The record
- CVE
- CVE-2026-34193
- Published
- Jun 1, 2026
- Updated
- Jun 1, 2026
- Vendor
- Imagination Technologies
- Product
- Graphics DDK
- Classifications
- CWE-823
- Attack vector
- adjacent
- Privileges
- admin
Timeline
How it unfolded
- Jun 1, 2026CVE publishedPublication date reported by the CVE source.
- Jun 1, 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 RTM
- Affected versionversion=23.2 RTM
- Affected versionversion=24.2 RTM
- Affected versionversion=25.1 RTM <=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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