CVE-2026-66315

HIGH

Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Published: 8/4/2026Modified: 8/4/2026

Related Intelligence (1)

HIGHVulnerability

NVD HIGH: CVE-2026-66315 — Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacke...

Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

CVE-2026-66315
NIST NVD

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66315