Microsoft Azure Data Explorer vulnerabilities

2 CVEs affecting Microsoft Azure Data Explorer, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-21524, published 2026-01-22.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2022-23256, published 2022-02-09. Medium severity, CVSS 4.3. EPSS: 1.6% chance of exploitation in the next 30 days. Azure Data Explorer Spoofing Vulnerability
• CVE-2026-21524, published 2026-01-22. High severity, CVSS 7.4. EPSS: 0.6% chance of exploitation in the next 30 days. Exposure of sensitive information to an unauthorized actor in Azure Data Explorer allows an unauthorized attacker to disclose information over a network.