CVE-2026-66803: Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.
Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-66803
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-668030.49% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-66803 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownVulnérabilité dans Microsoft Azure (31 juillet 2026)cert-fr-avis
- criticalCVE-2026-66803: Azure Cosmos DB Remote Code Execution Vulnerabilitymsrc
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