[NEW] [high] Microsoft Azure Cosmos DB: Vulnerability enables code execution
A remote anonymous attacker can exploit a vulnerability in Microsoft Azure Cosmos DB to execute arbitrary code.
CSIRTS triage
- What
- A vulnerability in Microsoft Azure Cosmos DB allows remote anonymous attackers to execute arbitrary code.
- Who is affected
- All Azure Cosmos DB instances are potentially exposed to remote attackers.
- Urgency
- High severity; remote code execution by anonymous attackers requires emergency patching.
- Action
- Apply Microsoft security patch for CVE-2026-66803 immediately.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2617
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-2026-668030.55% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 44% of all EPSS-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.
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