{"affected":[{"product":"Azure Cosmos DB","source":"CNA: microsoft","vendor":"Microsoft","versions":[{"status":"affected","version":"-"}]}],"cveId":"CVE-2026-66803","cwes":["CWE-284"],"description":"Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.","epss":{"date":"2026-11-10","percentile":0.60001,"score":0.00901},"exploits":[],"kev":null,"metrics":[{"score":10,"severity":"critical","source":"CNA: microsoft","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"}],"modifiedAt":1794350461051,"publishedAt":1785443284898,"references":[{"source":"CNA: microsoft","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66803"}],"remediation":[{"kind":"fix","source":"CNA: microsoft","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66803"}],"revision":"8d686fd4f7aa3815cbbce1efc0cefd7b85184b19c738f62e0af9f07bad041fdf","sources":[{"modifiedAt":1794350461051,"name":"CNA: microsoft","retrievedAt":1794353805833,"url":"https://www.cve.org/CVERecord?id=CVE-2026-66803"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794353818898,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-66803"}],"ssvc":{"assessedAt":1785369600000,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"Azure Cosmos DB Remote Code Execution Vulnerability","updatedAt":1794353818898}