Widely used cloud IoT service; privilege escalation could impact many orgs and operations.
CVE-2026-21515
Info exposure in Azure IoT Central enables network privilege escalation.
Is CVE-2026-21515 being exploited?
Not confirmed. CVE-2026-21515 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 0.70% probability of exploitation in the next 30 days.
How severe is CVE-2026-21515?
CVE-2026-21515 is rated Critical with a CVSS score of 9.9. 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-2026-21515?
Yes. A fix has been recorded for CVE-2026-21515. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-21515 affect?
CVE-2026-21515 affects Azure IoT Central. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-21515?
Monitor advisories; patch when available.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Exposed sensitive data enables attacker to escalate privileges across the network via IoT Central.
Monitor only