CVE-2026-83947
Azure Event Grid Spoofing Vulnerability
Microsoft Azure Event Grid SystemContainers & cloud
CVSS
7.7HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.36%Chance of exploitation activity in the next 30 days, higher than 28% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
Missing authorization in Azure Event Grid allows an authorized attacker to perform spoofing over a network.
Text from CVE List
Affected versions 1
- Azure Event Grid Systemaffected: -CVE List