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CVE-2026-83947

7.7 · HIGH

Missing authorization in Azure Event Grid allows an authorized attacker to perform spoofing over a network.

Published Oct 8, 2026microsoftCWE-862EPSS 0.53%

Overview

CVE-2026-83947 is a high-severity vulnerability affecting microsoft azure_event_grid. It was published on October 8, 2026 and has a CVSS 3.1 base score of 7.7 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Missing authorization in Azure Event Grid allows an authorized attacker to perform spoofing over a network.

Remediation

Check the references section for vendor advisories and patches from microsoft. Update azure_event_grid to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refmsrc.microsoft.com/update-guide/vulnerability/CVE-2026-83947

How CyberStrike helps

Frequently asked questions

What is CVE-2026-83947?

CVE-2026-83947 is a high-severity vulnerability affecting microsoft azure_event_grid. It was published on October 8, 2026 and has a CVSS 3.1 base score of 7.7 (HIGH).

How severe is CVE-2026-83947?

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-83947?

Check the references section for vendor advisories and patches from microsoft. Update azure_event_grid to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-83947?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-83947 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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