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Findings

ZDI-26-606

ZDI-26-606: Microsoft Windows Compatibility Appraiser Link Following Local Privilege Escalation Vulnerability

Published Aug 24, 2026

This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code in the context of LOCAL SERVICE on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.0.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 24, 2026 · Catalog

    Detected

    This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code in the context of LOCAL SERVICE on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.0.

Sources

  • Zero Day InitiativeZDI-26-606

    This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code in the context of LOCAL SERVICE on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.0.

    zerodayinitiative.com