CVE-2026-49745

Guest privilege escalation via unvalidated DMA buffer address

Published Jul 24, 2026 · Updated Jul 24, 2026

Out-of-bounds write in Imagination Technologies Graphics DDK before 26.1 RTM2 allows guest OS users to escalate privileges. The firmware accepts an unvalidated sHWPerfCtlDMABuf GPU virtual address and uses MMU context 0 to DMA-write into firmware-private data outside the guest's virtualized GPU memory. Kernel software running inside a guest VM must submit the crafted GPU command; the resulting memory corruption crosses the guest GPU-memory boundary and permits privilege escalation.

CVSS severity7.8
High
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Imagination Technologies Graphics DDK before 26.1 RTM2 allows guest OS users to escalate privileges. The firmware accepts an unvalidated sHWPerfCtlDMABuf GPU virtual address and uses MMU context 0 to DMA-write into firmware-private data outside the guest's virtualized GPU memory. Kernel software running inside a guest VM must submit the crafted GPU command; the resulting memory corruption crosses the guest GPU-memory boundary and permits privilege escalation.

The record

CVE
CVE-2026-49745
Published
Jul 24, 2026
Updated
Jul 24, 2026
Vendor
Imagination Technologies
Product
Graphics DDK
Classifications
CWE-823, CAPEC-480, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 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.

  1. Affected versionversion=1.18 RTM2
  2. Affected versionversion=23.2 RTM2
  3. Affected versionversion=24.2 RTM2
  4. Affected versionversion=25.1 RTM2 <=25.3 RTM
  5. Affected versionversion=26.1 RTM1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Imagination Technologies · Graphics DDKversion=1.18 RTM2; version=23.2 RTM2; version=24.2 RTM2; version=25.1 RTM2 <=25.3 RTM; version=26.1 RTM1

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-823Use of Out-of-range Pointer Offset
CAPEC-480Escaping Virtualization
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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