CVE-2026-66803
Azure Cosmos DB Remote Code Execution vulnerability
Microsoft·Azure Cosmos DB Remote Code Execution
MSRC advisory July 30, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-66803
- Affected products
- Azure Cosmos DB Remote Code Execution · Microsoft Azure Cosmos DB Remote Code Execution · Microsoft
What happened
Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.
What it means for your business
Azure Cosmos DB Remote Code Execution vulnerability (CVE-2026-66803) was added to Microsoft’s security update guidance. Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
Sources
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