vulnerability
Microsoft Edge (Chromium-based): CVE-2026-8521: Use after free in Tab Groups
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:A/AC:M/Au:N/C:C/I:C/A:C) | May 21, 2026 | May 25, 2026 | May 25, 2026 |
Severity
8
CVSS
(AV:A/AC:M/Au:N/C:C/I:C/A:C)
Published
May 21, 2026
Added
May 25, 2026
Modified
May 25, 2026
Description
Microsoft Edge: CVE-2026-8521: Use after free in Tab Groups
Solution
microsoft-edge-upgrade-latest
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.