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PatchSiren cyber security CVE debrief

CVE-2026-49744 Imagination Technologies CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-24T09:16:24.787Z and has not been modified since then. The vulnerability involves Kernel software in a Guest VM posting improper commands to GPU Firmware, potentially triggering out-of-bounds writes. Malware in a Guest KMD could allow privilege escalation, escaping virtualization boundaries. This affects virtualized environments with GPU Firmware and Kernel software in Guest VMs, emphasizing careful patch management and verification of system configurations. Organizations should review official advisories to validate affected scope, severity, and vendor guidance. They should also focus on compensating controls for exposed systems, monitor for out-of-bounds access attempts, and maintain asset inventory and tracking of Guest VM software updates.

Vendor
Imagination Technologies
Product
Graphics DDK
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-24
Original CVE updated
2026-07-28
Advisory published
2026-07-24
Advisory updated
2026-07-28

Who should care

Organizations using virtualized environments with GPU Firmware and Kernel software in Guest VMs should prioritize patching and verifying their systems. This includes reviewing the official advisory or CVE record to validate affected scope, severity, and vendor guidance. Additionally, they should focus on compensating controls for exposed systems while remediation is scheduled and verified, and monitor for out-of-bounds access attempts. Asset inventory and tracking of Guest VM software updates are also crucial for maintaining security posture.

Technical summary

Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a write of data outside the Guest's virtualised GPU memory. Out of bounds accesses triggered by malware introduced to a Guest KMD could allow privilege escalation which escapes virtualization boundaries. This vulnerability affects virtualized environments with GPU Firmware and Kernel software in Guest VMs, emphasizing the need for careful patch management and verification of system configurations.

Defensive priority

Patch and verify GPU Firmware and Guest KMD for out-of-bounds access prevention.

Recommended defensive actions

  • Patch and verify GPU Firmware
  • Verify and restrict Guest KMD
  • Monitor for out-of-bounds access attempts
  • Implement compensating controls for virtualization boundaries
  • Inventory and track Guest VM software updates

Evidence notes

The CVE record indicates improper commands posted to GPU Firmware by Kernel software in a Guest VM may trigger out-of-bounds writes. Malware in a Guest KMD could allow privilege escalation escaping virtualization boundaries. Official records show CVSS score 7.8 and HIGH severity. To verify and assess exposure, defenders should review the official CVE record and NVD details, focusing on affected product deployments, potential operational impact, and recommended patching and verification steps for GPU Firmware and Guest KMD.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-24T09:16:24.787Z and has not been modified since then.