How severe is CVE-2026-24306?

CVE-2026-24306 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-24306 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-24306?

CVE-2026-24306 affects Microsoft Azure Front Door. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-24306?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-24306 have an EU (EUVD) identifier?

Yes. CVE-2026-24306 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4494.

When was CVE-2026-24306 published?

CVE-2026-24306 was published on 2026-01-22 and last updated on 2026-06-17.

CVE-2026-24306

CVE-2026-24306 is a critical-severity vulnerability in Microsoft Azure Front Door with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4494
Weakness: CWE-284
Affected product: Microsoft Azure Front Door
Published: 2026-01-22
Last modified: 2026-06-17

Description

Improper access control in Azure Front Door (AFD) allows an unauthorized attacker to elevate privileges over a network.

Frequently asked questions

What is CVE-2026-24306?: Improper access control in Azure Front Door (AFD) allows an unauthorized attacker to elevate privileges over a network.
How severe is CVE-2026-24306?: CVE-2026-24306 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-24306 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-24306?: CVE-2026-24306 affects Microsoft Azure Front Door. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-24306?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-24306 have an EU (EUVD) identifier?: Yes. CVE-2026-24306 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4494.
When was CVE-2026-24306 published?: CVE-2026-24306 was published on 2026-01-22 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24306

Affected products (1)

cpe:2.3:a:microsoft:azure_front_door:-:*:*:*:*:*:*:*

More vulnerabilities in Microsoft Azure Front Door

CVE-2026-24300 — Critical (CVSS 9.8): Azure Front Door Elevation of Privilege Vulnerability

All CVEs affecting Microsoft Azure Front Door →

Other CWE-284 (Improper Access Control) vulnerabilities

CVE-2026-50746 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi…
CVE-2026-46978 — Critical (CVSS 10.0): Vulnerability in the Oracle Solaris product of Oracle Systems (component: Remote Administration Daemon). The…
CVE-2026-35308 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Centralized Third Party Jars).…
CVE-2026-35307 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that…
CVE-2026-46695 — Critical (CVSS 10.0): Boxlite is a sandbox service that allows users to create lightweight virtual machines (Boxes) and launch OCI containers…
CVE-2026-46840 — Critical (CVSS 10.0): Vulnerability in Oracle REST Data Services (component: Backend-as-a-Service). Supported versions that are affected are…

Browse all CWE-284 (Improper Access Control) vulnerabilities →