CVE-2026-88219

Summary

A critical untrusted pointer dereference vulnerability in the RPC Runtime allows remote attackers to execute arbitrary code with high privileges. This flaw occurs when the system processes untrusted data from network RPC calls without proper validation, potentially leading to complete system compromise.

Exploitability

Exploitation is moderately difficult requiring a network-based attack with specific RPC call patterns, but can be achieved by an unauthenticated attacker with minimal preconditions.

Blast radius

If exploited, this vulnerability could allow attackers to gain full system control across affected networks, potentially affecting multiple systems that rely on the RPC runtime for inter-process communication.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Apply the latest security patch from Microsoft or the vendor that addresses CVE-2026-88219, as no specific version is mentioned in the description.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.