CVE-2026-84353
Use after free in Shared Tab Groups in Microsoft Edge vulnerability
MSRC advisory September 3, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-84353
- CWE
- CWE-416
- Affected products
- Microsoft Edge · Microsoft Microsoft Edge · Microsoft
What happened
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see [Google Chrome Releases](https://chromereleases.googleblog.com/2026) for more information.
What it means for your business
Use after free in Shared Tab Groups in Microsoft Edge vulnerability (CVE-2026-84353) was added to Microsoft’s security update guidance. This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see [Google Chrome Releases](https://chromereleases.googleblog.com/2026) for more information. If you need help checking exposure, call (864) 335-9223.
CVSS score
9.6 (Critical)
EPSS probability
0.28%
Sources
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