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Azure Service Bus

1 CVEs product

Monthly

CVE-2026-50515 CRITICAL NEWS HOSTED Monitor

Remote code execution in Microsoft Azure Service Bus lets an already-authorized (PR:L) attacker send maliciously crafted serialized data that the service deserializes without validation (CWE-502), executing attacker-controlled code across the network. The scope-changed CVSS 9.9 rating reflects that code execution can break out of the caller's authorization boundary into the underlying managed-service host, threatening confidentiality, integrity, and availability of the messaging infrastructure. There is no public exploit identified at time of analysis, but the near-maximal severity and cloud-hosted, multi-tenant nature of the platform make this a high-priority issue.

Microsoft Deserialization Azure Service Bus
NVD
CVSS 3.1
9.9
EPSS
0.9%
EPSS 1% CVSS 9.9
CRITICAL HOSTED Monitor

Remote code execution in Microsoft Azure Service Bus lets an already-authorized (PR:L) attacker send maliciously crafted serialized data that the service deserializes without validation (CWE-502), executing attacker-controlled code across the network. The scope-changed CVSS 9.9 rating reflects that code execution can break out of the caller's authorization boundary into the underlying managed-service host, threatening confidentiality, integrity, and availability of the messaging infrastructure. There is no public exploit identified at time of analysis, but the near-maximal severity and cloud-hosted, multi-tenant nature of the platform make this a high-priority issue.

Microsoft Deserialization Azure Service Bus
NVD

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