Cyber Resilience

CVE-2026-8540

High

Published: 14 May 2026

Published
14 May 2026
Modified
19 May 2026
KEV Added
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Patch
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CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0031 22.3th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-8540 is a high-severity Type Confusion (CWE-843) vulnerability in Google Chrome. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Client Execution (T1203); ranked at the 22.3th 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 V8 in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

CWE(s)
CWE-843

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
Why these techniques?

Type confusion in V8 enables direct client-side RCE via crafted HTML page, mapping to Exploitation for Client Execution.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-1920Same product: Google Chrome
CVE-2026-6363Same product: Google Chrome
CVE-2025-2135Same product: Google Chrome
CVE-2025-1916Same product: Google Chrome
CVE-2025-0762Same product: Google Chrome
CVE-2025-0291Same product: Google Chrome
CVE-2026-6315Same product: Google Chrome
CVE-2026-2648Same product: Google Chrome
CVE-2026-8558Same product: Google Chrome
CVE-2025-12907Same product: Google Chrome

Affected Assets

google
chrome
≤ 148.0.7778.168

Mitigating Controls

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

References