PT-2026-67559 · Microsoft · Edge

CVE-2026-66312 · Published 2026-08-03 · Updated 2026-08-04

Mitre

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Buffer over-read in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.

Fix

Buffer Over-read

Weakness Enumeration

CWE-126

Related Identifiers

CVE-2026-66312

Affected Products

Edge

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-66312 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66312 · Vendor Advisory