Zero‑Day Windows Kernel Elevation‑of‑Privilege (CVE‑2025‑62215) Exploited in the Wild
What Happened – A race‑condition flaw in the Windows kernel (CVE‑2025‑62215) allows an attacker who already has low‑privilege access to elevate to SYSTEM rights. A public exploit was posted on Exploit‑DB on 2026‑04‑06 and is listed in the CISA Known Exploited Vulnerabilities catalog.
Why It Matters for TPRM –
- Privilege‑escalation on a client workstation can be leveraged to compromise third‑party software, data stores, and VPN credentials.
- Many SaaS and managed‑service providers rely on Windows endpoints for administration; a breach can cascade into supply‑chain incidents.
- The vulnerability is actively exploited, so remediation timelines are compressed.
Who Is Affected – All organizations that run Windows 10, 11, or 12 on desktops, laptops, or virtual machines, across all industry sectors.
Recommended Actions –
- Deploy Microsoft’s security update for CVE‑2025‑62215 immediately.
- Verify that endpoint protection solutions block known exploit binaries.
- Enforce least‑privilege policies and monitor for abnormal token‑elevation events.
- Review third‑party vendor contracts for clauses requiring timely patching of OS vulnerabilities.
Technical Notes – The flaw is a local privilege‑escalation (LPE) race condition in the kernel’s handling of shared resources. CVSS 3.1 base score 7.0 (HIGH). Exploit code requires local access and leverages token manipulation to obtain SYSTEM privileges. No remote code execution vector is known. Source: Exploit‑DB 52494