CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

← Back to feed

Vulnerability in Microsoft Azure (July 31, 2026)

unknownCVE-2026-66803
A vulnerability has been discovered in Microsoft Azure. It allows an attacker to cause remote arbitrary code execution.

CSIRTS triage

vendor: Microsoftproduct: AzureRemote code execution
What
A vulnerability in Microsoft Azure allows remote arbitrary code execution.
Who is affected
Azure deployments and services.
Urgency
Critical; arbitrary code execution requires immediate remediation.
Action
Apply Microsoft Azure security patches.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Azure

Get an email when a new Azure advisory drops — max one per day, one-click unsubscribe.

Details

Source
CERT-FR Avis de sécurité (FR · national-cert · site)
Severity
unknown
Published
2026-07-31
Exploitation
Not in CISA KEV at last sync
Language
Machine-translated to English — verify against the original

Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0953/

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.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-66803coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Microsoft Azure

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from CERT-FR Avis de sécurité