Microsoft won’t patch PhantomRPC: Feature or bug?
2026-04-29T20:52:01Z•0ba0c6922f9d737374521e135cac6d46f5f74b5973f8af3ce48d62d7ecf925ab
MicrosoftPhantomRPCRPCWindowsdesign-flawexploit-methodsno-fix-decisionrisk-acceptancesecurity-researchvulnerability-disclosure
What happened
A researcher detailed five ways to exploit PhantomRPC (a Microsoft RPC-related feature). Microsoft evaluated the findings as “moderate” and announced it will not issue patches, treating the behaviors as feature/design decisions rather than vulnerabilities to be fixed. The disclosure highlights remaining attack surface and potential for abuse despite Microsoft’s decision to accept the risk.
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- malwarebytes_labs
- Record identifier
- 0ba0c6922f9d737374521e135cac6d46f5f74b5973f8af3ce48d62d7ecf925ab
- Enrichment time
- 2026-04-29T20:52:01Z
- AI-assisted enrichment
- Yes
This record may overlap with other records. Its enrichment can be incomplete or wrong, and machine assistance was used. Validate consequential decisions against the linked source and your own environment.