What’s Vulnerable › Vulnerabilities

CVE-2025-59273: Azure Event Grid System Elevation of Privilege Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-23 · updated 2026-10-08
• Weakness: CWE-284

Description

Improper access control in Azure Event Grid allows an unauthorized attacker to elevate privileges over a network.

Affected products

• Microsoft Azure Event Grid System: all versions
• Microsoft Azure Event Grid System: all versions

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59273

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