Targets Microsoft Azure App Service, a widely used cloud platform; CVSS 10.0 remote privilege escalation can enable broad org disruption.
CVE-2026-58630
Unauthorized privilege escalation in Azure App Service enabling admin-level takeover
Is CVE-2026-58630 being exploited?
Not confirmed. CVE-2026-58630 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.46% probability of exploitation in the next 30 days.
How severe is CVE-2026-58630?
CVE-2026-58630 is rated Critical with a CVSS score of 10.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-58630?
Yes. A fix has been recorded for CVE-2026-58630. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-58630 affect?
CVE-2026-58630 affects Microsoft Azure App Service (Web Apps, API Apps, Functions), Azure management plane/Portal, Customer App Instances. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-58630?
Patch when available; restrict management access, rotate secrets, enforce RBAC and enable detailed logging.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote privilege escalation allows attackers to gain administrative control of App Service instances, deploy code, and access app settings and secrets.
Immediate action required