elevation privilege

CVE‑2026‑21231 represents another entry in the long, high‑stakes catalog of Windows kernel elevation‑of‑privilege advisories — a vendor‑registered vulnerability whose public metadata, patch mapping, and “report confidence” signal should drive immediate, prioritized operational action even while...

Microsoft’s advisory listing for CVE-2026-20920 places this entry squarely in the long-running, high-impact family of Win32k kernel vulnerabilities that enable local elevation of privilege; the vendor’s published description and the accompanying confidence metric make clear that defenders should...