CVE-2026-83518 | Microsoft Windows 11 23H2/11 24H2/11 25H2/11 26H1 RPC Runtime heap-based overflow

October 14, 2026 Yanac

A vulnerability marked as very critical has been reported in Microsoft Windows 11 23H2/11 24H2/11 25H2/11 26H1. This affects an unknown part of the component RPC Runtime. This manipulation causes heap-based buffer overflow.

The identification of this vulnerability is CVE-2026-83518. The attack can only be executed locally. There is no exploit available.

It is suggested to install a patch to address this issue.VulDB Recent EntriesRead More