What’s Vulnerable › Vulnerabilities

CVE-2026-50515: Azure Service Bus Remote Code Execution Vulnerability

• Severity: critical (CVSS 9.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-06 · updated 2026-10-30
• Weakness: CWE-502

Description

Deserialization of untrusted data in Azure Service Bus allows an authorized attacker to execute code over a network.

Affected products

• Microsoft Azure Service Bus: all versions
• Microsoft Azure Service Bus: all versions

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50515

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