CVE-2026-83947: high-severity vulnerability in Microsoft Azure Event Grid System
Azure Event Grid Spoofing Vulnerability
Published · Updated
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.7epss 0.4%
exploitation probability
0.4%top 71% of all CVEs
observed exploitation
nono source reports it
Missing authorization in Azure Event Grid allows an authorized attacker to perform spoofing over a network.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N/E:U/RL:O/RC:C
Affected products
Microsoft · Azure Event Grid SystemRelated CVEs — Microsoft Azure Event Grid System
In the same product, most dangerous first.