Cyber Resilience

CVE-2026-12014

HighUpdated

Published: 11 June 2026

Published
11 June 2026
Modified
23 June 2026
KEV Added
—
Patch
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CVSS Score v3.1 8.3 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0017 7.1th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-12014 is a high-severity Use After Free (CWE-416) vulnerability in Google Chrome. Its CVSS base score is 8.3 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 7.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Use after free in Cast in Google Chrome prior to 149.0.7827.115 allowed an attacker on the local network segment to potentially perform a sandbox escape via malicious network traffic. (Chromium security severity: High)

CWE(s)
CWE-416

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

UAF in Chrome Cast enables remote code execution via malicious LAN traffic leading directly to sandbox escape (T1068) and client-side exploitation (T1203).

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

Affected Assets

google
chrome
≤ 149.0.7827.115

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-16 Memory Protection
addresses: CWE-416

Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.

References