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CVE-2025-48815 is a local privilege escalation vulnerability in the Windows Simple Service Discovery Protocol (SSDP) Service caused by type confusion in its RPC handling. The flaw arises because the service exposes multiple RPC context-handle types and fails to enforce that a handle supplied to one interface method is of the expected object type. Specifically, analysis indicates that a context handle returned by the SSDP open routine can be accepted by the sync-handle removal routine even though the latter expects a different handle type. In the vulnerable path, the removal routine ultimately treats the supplied object as a synchronization-handle structure and invokes handle-closing logic on an embedded value. This incompatible-type resource access can allow an attacker to cause the service to operate on an unintended handle value within the service process, leading to privileged misuse of process resources and enabling elevation of privilege.
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3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A type-confusion vulnerability in the Windows SSDP RPC server (ssdpsrv) caused by improper handling of RPC context-handle types, allowing a CONTEXT_HANDLE object to be used where a SYNC_HANDLE is expected and leading to arbitrary handle closure in the process context.
A type confusion privilege escalation vulnerability in the Windows SSDP Service that could allow authenticated attackers to gain elevated privileges, potentially up to SYSTEM-level access.
Microsoft vulnerability identified as CVE-2025-48815; the provided content does not include technical details about the flaw or its impact.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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