CVE-2026-116928

Summary

A critical out-of-bounds write vulnerability (CWE-787) exists in Microsoft Windows Search Component, allowing remote code execution without authentication over the network.

Exploitability

Exploitation is highly likely due to network accessibility (AV:N), low attack complexity (AC:L), and no required privileges or user interaction (PR:N, UI:N).

Blast radius

Successful exploitation could enable full system compromise—including data theft, malware deployment, and lateral movement—across any affected Windows systems with the vulnerable search component enabled.

Detection

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

Prioritized remediation

Apply Microsoft security update MS26-XXXX (specific patch level not published in description); until then, disable Windows Search service if non-essential or restrict network exposure of SMB/HTTP endpoints used by the search component per Microsoft advisory.

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