CVE intelligence

CVE-2026-77900

Vulnerability intelligence

Published Oct 8, 2026Sources checked Oct 9, 2026

9.8CRITICALCVSS out of 10

What this means

Review the available evidence

CVE-2026-77900 and is rated Critical severity with a CVSS score of 9.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSSUnavailableNo current score collected

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-77900?

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

Source: NVD