CVE-2026-45203

Kernel software installed and running inside a Host VM may post improper commands to the GPU Firmware to trigger a memory write outside the permitted range of memory for the host kernel. A TOCTOU bug existed where a malicious driver could modify values in memory after firmware validation but before use.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.imaginationtech.com/gpu-driver-vulnerabilities/	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:a:imaginationtech:ddk::::::::
	cpe:2.3:a:imaginationtech:ddk:26.1:rtm1::::::

OR	cpe:2.3:o:google:android:-:::::::*
	cpe:2.3:o:linux:linux_kernel:-:::::::*

History

25 Oct 2026, 15:10

Type	Values Removed	Values Added
Summary		(es) El software del kernel instalado y ejecutándose dentro de una VM anfitriona puede enviar comandos incorrectos al firmware de la GPU para desencadenar una escritura en memoria fuera del rango de memoria permitido para el kernel anfitrión. Existía un error TOCTOU donde un controlador malicioso podría modificar valores en memoria después de la validación del firmware pero antes de su uso.

Information

Published : 2026-07-10 21:16

Updated : 2026-10-25 15:10

NVD link : CVE-2026-45203

Mitre link : CVE-2026-45203

CVE.ORG link : CVE-2026-45203

JSON object : View

Products Affected

google

android

imaginationtech

ddk

linux

linux_kernel

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

{"id": "CVE-2026-45203", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-45203", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-13T18:33:59.825342Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "367425dc-4d06-4041-9650-c2dc6aaa27ce", "affectedData": [{"vendor": "Imagination Technologies", "product": "Graphics DDK", "versions": [{"status": "affected", "version": "1.18 RTM2", "versionType": "custom"}, {"status": "affected", "version": "23.2 RTM2", "versionType": "custom"}, {"status": "affected", "version": "24.2 RTM2", "versionType": "custom"}, {"status": "affected", "version": "25.1 RTM2", "versionType": "custom", "lessThanOrEqual": "25.3 RTM"}, {"status": "affected", "version": "26.1 RTM1", "versionType": "custom"}, {"status": "unaffected", "version": "26.1 RTM2", "versionType": "custom"}], "platforms": ["Linux", "Android"], "defaultStatus": "unknown"}]}], "published": "2026-07-10T21:16:54.760", "references": [{"url": "https://www.imaginationtech.com/gpu-driver-vulnerabilities/", "tags": ["Vendor Advisory"], "source": "367425dc-4d06-4041-9650-c2dc6aaa27ce"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "367425dc-4d06-4041-9650-c2dc6aaa27ce", "description": [{"lang": "en", "value": "CWE-367"}]}], "descriptions": [{"lang": "en", "value": "Kernel software installed and running inside a Host VM may post improper commands to the GPU Firmware to trigger a memory write outside the permitted range of memory for the host kernel.\n\n\n\nA TOCTOU bug existed where a malicious driver could modify values in memory after firmware validation but before use."}, {"lang": "es", "value": "El software del kernel instalado y ejecut\u00e1ndose dentro de una VM anfitriona puede enviar comandos incorrectos al firmware de la GPU para desencadenar una escritura en memoria fuera del rango de memoria permitido para el kernel anfitri\u00f3n.\n\nExist\u00eda un error TOCTOU donde un controlador malicioso podr\u00eda modificar valores en memoria despu\u00e9s de la validaci\u00f3n del firmware pero antes de su uso."}], "lastModified": "2026-10-25T15:10:00.147", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "97C60721-9E04-406B-8036-D7799D679CD8", "versionEndExcluding": "26.1"}, {"criteria": "cpe:2.3:a:imaginationtech:ddk:26.1:rtm1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B6047F4B-B29A-44F7-8F80-8A53C1917F38"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "367425dc-4d06-4041-9650-c2dc6aaa27ce"}