CVE-2026-22166 | GPU DDK - Write UAF in KEGLGetPoolBuffers, WebGL reachable

A web page that contains unusual WebGPU content loaded into the GPU GLES render process and can trigger write UAF crash in the GPU GLES user-space shared library. On certain platforms, when the process executing graphics workload has system privileges this could enable subsequent exploit on the system.

Published: 2026-05-01 Last update: 2026-06-01 Assigner: 367425dc-4d06-4041-9650-c2dc6aaa27ce Source: 367425dc-4d06-4041-9650-c2dc6aaa27ce
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-22166 is rated Low Risk (33.2/100): CVSS High severity, with low exploitation likelihood (EPSS 0.01%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-22166

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-02 — 0.01% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-22166

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.2 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2026-22166

GitHub Security Advisory for CVE-2026-22166

GHSA-7xjg-gxff-2m4m · Severity: critical — A web page that contains unusual WebGPU content loaded into the GPU GLES render process and can...

Affected software / configurations for CVE-2026-22166

Vendor Product Version Raw CPE
imaginationtech ddk <= 25.2 cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:*
imaginationtech ddk 25.3 cpe:2.3:a:imaginationtech:ddk:25.3:rtm:*:*:*:*:*:*

References for CVE-2026-22166

cvelogic Threat Intelligence