CVE-2026-84355
Incorrect authorization in Navigation in Microsoft Edge vulnerability
MSRC advisory September 8, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-84355
- 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
Incorrect authorization in Navigation in Microsoft Edge vulnerability (CVE-2026-84355) 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.
Sources
Related briefs
Windows Raw Image Extension Remote Code Execution vulnerability
Windows Raw Image Extension Remote Code Execution vulnerability (CVE-2026-96202) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Windows Raw Image Extension allows an unauthorized attacker to execute code over a network. If you need help checking exposure, call (864) 335-9223.
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability (CVE-2026-96199) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network. If you need help checking exposure, call (864) 335-9223.
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability (CVE-2026-96198) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network. If you need help checking exposure, call (864) 335-9223.
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability (CVE-2026-85898) was added to Microsoft’s security update guidance. Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network. If you need help checking exposure, call (864) 335-9223.
Need help patching?
PremierePC monitors KEV alerts for managed clients and helps teams prioritize remediation before attackers do.