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Δ / VULNERABILITY RECORD

CVE-2026-77900.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSCRITICAL / 9.8CVSS 3.1 · secure@microsoft.com
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSAwaiting AnalysisModified Oct 10, 2026

Disclosure summary

Missing authentication for critical function in Azure App Service allows an unauthorized attacker to execute code over a network.

Source-reported weakness categories

CWE-306

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

NIST National Vulnerability Database · NVD-CVE-2026-77900

Open original source · Updated Oct 10, 2026

Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.

MSRC Security Update Guide · RSS-35db85bebc4715ff8a9cead2bdb0c512d49

Open original source · Updated Oct 08, 2026

CVE-2026-77900 Azure App Service Remote Code Execution Vulnerability

CVE mention in publisher metadata; check the original affected versions.

Original records & references

PUBLISHED 2026-10-08T19:17:03-04:00
MODIFIED 2026-10-10T00:18:14-04:00
INGESTED 2026-10-10T20:55:12-04:00