What is CVE-2026-9117?

CVE-2026-9117 is a high-severity vulnerability in Google Chrome, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.5/10. Published 2026-05-20.

How severe is CVE-2026-9117?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Google Chrome

CVE-2026-9117

Type Confusion in GFX in Google Chrome on Linux, ChromeOS prior to 148.0.7778.179 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted video file. (Chromium security severity: High)

Published 2026-05-20 · last modified 2026-07-23.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (16.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000

Affected products

Google Chrome — versions 148.0.7778.179
Google Chrome OS
Linux Kernel

Weakness classification (CWE)

CWE-843 — Access of Resource Using Incompatible Type (Type Confusion)

References

chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0841193… (Vendor Advisory)
issues.chromium.org/issues/497542537 (Permissions Required)

Frequently asked questions

What is CVE-2026-9117?: CVE-2026-9117 is a high-severity vulnerability in Google Chrome, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.5/10. Published 2026-05-20.
How severe is CVE-2026-9117?: High severity. CVSS v3 base score is 7.5 out of 10.