Cyber Resilience

CVE-2026-9117

High

Published: 20 May 2026

Published
20 May 2026
Modified
21 May 2026
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0027 17.7th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-9117 is a high-severity Type Confusion (CWE-843) vulnerability in Google Chrome. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 17.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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)

CWE(s)
CWE-843

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
Why these techniques?

Type confusion in Chrome renderer enables sandbox escape (privilege escalation) after initial renderer compromise.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2026-8534Same product: Google Chrome
CVE-2025-12438Same product: Google Chrome
CVE-2026-8001Same product: Google Chrome
CVE-2026-7992Same product: Google Chrome
CVE-2026-9988Same product: Google Chrome
CVE-2026-7914Same product: Google Chrome
CVE-2026-9123Same product: Google Chrome
CVE-2026-31502Same product: Linux Linux Kernel
CVE-2026-7898Same product: Google Chrome
CVE-2024-40676Same vendor: Google

Affected Assets

google
chrome
≤ 148.0.7778.179

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References