8.8
/ 10
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Description
Read how PatchDiff-AI uncovered the root cause of CVE-2026-21513 — an actively exploited MSHTML vulnerability — and how APT28 leveraged it in real-world attacks.
Basic Information
ID
AKAMAIBLOG:81E1185FCA260168CA3DEDEF0D943846
Published
Feb 20, 2026 at 15:00