CVE-2026-83947
Azure Event Grid Spoofing vulnerability
MSRC advisory October 8, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-83947
- CWE
- CWE-862
- Affected products
- Azure Event Grid Spoofing · Microsoft Azure Event Grid Spoofing · Microsoft
What happened
<p>Missing authorization in Azure Event Grid allows an authorized attacker to perform spoofing over a network.</p>
What it means for your business
Azure Event Grid Spoofing vulnerability (CVE-2026-83947) was added to Microsoft’s security update guidance. <p>Missing authorization in Azure Event Grid allows an authorized attacker to perform spoofing over a network.</p> If you need help checking exposure, call (864) 335-9223.
CVSS score
7.7 (High)
Sources
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