Microsoft Windows Search Component: Local privilege escalation via link following

Summary

A local elevation of privilege vulnerability (CWE-59, link following) affects the Windows Search Component on several supported and some older Windows 10, Windows 11 and Windows Server versions. An authorized local user with low privileges can abuse improper link resolution before file access to gain higher privileges, with a CVSS 3.1 base score of 7.8. Remote attackers without a local account cannot use it directly. Microsoft rates it Important, and the risk mainly applies after an attacker has already gained a foothold on a system.

Affected

• Windows 10 Version 1607 and Windows Server 2016: 10.0.14393.0 before 10.0.14393.9612
• Windows 10 Version 1809: 10.0.17763.0 before 10.0.17763.9376
• Windows 10 Version 21H2: 10.0.19044.0 before 10.0.19044.7807
• Windows 10 Version 22H2: 10.0.19045.0 before 10.0.19045.7807
• Windows 11 Version 23H2: 10.0.22631.0 before 10.0.22631.7652
• Windows 11 Version 24H2: 10.0.26100.0 before 10.0.26100.9711
• Windows 11 Version 25H2: 10.0.26200.0 before 10.0.26200.9711
• Windows 11 Version 26H1: 10.0.28000.0 before 10.0.28000.3231
• Windows 11 Version 26H2: 10.0.26300.0 before 10.0.26300.9711
• Windows Server 2012 (including Server Core): 6.2.9200.0 before 6.2.9200.26434
• Windows Server 2012 R2 (including Server Core): 6.3.9600.0 before 6.3.9600.23470

Fixed in

Install the Microsoft security update that brings each affected product to the fixed build listed in the CNA record, for example 10.0.14393.9612 for Windows 10 Version 1607 and Windows Server 2016. Verify the exact fixed build and KB article on the MSRC page before rollout.

Workaround

Unknown. No vendor workaround was documented in the reviewed sources.

Exploitation

• Exploited in the wild: Unknown. No confirmed CISA KEV entry was found.
• SonicWall lists a detection signature for this CVE (October 2026). This suggests exploit-related tooling may have been seen, but it is not proof of exploitation.
• No public proof of concept was found; this does not rule out that one exists.
• CISA SSVC assessment: exploitation none, automatable no, technical impact total.

Our recommendation

• Inventory all Windows systems, including any Windows 10 Version 1607 and Windows Server 2012 or 2016 machines.
• Apply the October 2026 security update to supported systems and verify the installed build.
• Plan replacement or upgrade of end-of-support systems, and check the Microsoft Lifecycle pages for their support status.
• Limit local logons and administrative rights, especially on shared or multi-user hosts.
• Monitor critical hosts for unusual privilege changes and suspicious file link activity.

Public exploits iAttack code is publicly available (PoC on GitHub, Metasploit or Exploit-DB).

PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.

Research sources

• Microsoft Security Response Center: CVE-2026-96911 msrc.microsoft.com
• Vulners CVE record CVE-2026-96911 vulners.com
• SonicWall: Microsoft security bulletin coverage for October 2026 www.sonicwall.com
• EUVD-2026-100240 vulners.com
• OpenCVE: CVE-2026-96911 app.opencve.io

Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 2 Nov 2026, 00:47.