CVE-2026-66314

Time-of-check time-of-use (toctou) race condition in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66314	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-08-04 00:17

Updated : 2026-08-06 17:03

NVD link : CVE-2026-66314

Mitre link : CVE-2026-66314

CVE.ORG link : CVE-2026-66314

JSON object : View

Products Affected

microsoft

edge_chromium

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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