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PatchSiren cyber security CVE debrief

CVE-2026-16280 Imagination Technologies CVE debrief

A critical vulnerability, CVE-2026-16280, was found in a GPU driver, which could allow a non-privileged user to trigger access to unintended physical memory. This vulnerability has a CVSS score of 9.8 and is classified as CRITICAL. The vulnerability is caused by an integer overflow when calculating physical offsets for sparse PMRs, which may result in 32-bit truncation of address computations for PMRs larger than 4 GB.

Vendor
Imagination Technologies
Product
Graphics DDK
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-24
Original CVE updated
2026-07-27
Advisory published
2026-07-24
Advisory updated
2026-07-27

Who should care

System administrators, security teams, and users of affected systems should be aware of this vulnerability and take necessary actions to mitigate it. Affected operators and platforms should review the vulnerability and implement compensating controls if necessary.

Technical summary

An integer overflow when calculating physical offsets for sparse PMRs may result in 32-bit truncation of address computations for PMRs larger than 4 GB. This can lead to incorrect GPU MMU mappings and may allow a non-privileged user to trigger access to unintended physical memory, resulting in memory corruption or information disclosure. The vulnerability affects GPU drivers and has a high impact on system security.

Defensive priority

High

Recommended defensive actions

  • Apply the vendor's patch or update to fix the vulnerability
  • Restrict access to affected systems and monitor for suspicious activity
  • Perform regular security audits and vulnerability assessments
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-24T23:16:50.393Z and was last modified on 2026-07-27T16:17:03.317Z. The NVD entry is currently Received. The vulnerability affects GPU drivers and may allow non-privileged users to access unintended physical memory. Evidence is limited, and defenders should verify affected scope and vendor guidance.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-24T23:16:50.393Z and has not been modified since then. The NVD entry is currently Received.