CVE-2026-69602 – Microsoft Windows 10 Version 1809

This update fixes 50 vulnerabilities in Windows 10 Version 1809. One is Critical and 49 are High severity. Most are memory-corruption flaws: use-after-free conditions and heap- and stack-based buffer overflows. 47 of them allow remote code execution, and many also open a path to elevation of privilege. Three missing-authorization flaws allow privilege escalation without code execution. Together they give an attacker several ways to take over an unpatched system.

CVE-2026-73010 has a CVSS score of 9.8, Critical severity. CVE-2026-69386 has a CVSS score of 8.8, High severity. CVE-2026-72962 and CVE-2026-81354 each have a CVSS score of 8.2, High severity. CVE-2026-69530 and CVE-2026-78450 each have a CVSS score of 8.1, High severity. CVE-2026-69503, CVE-2026-69625, CVE-2026-69689, CVE-2026-69762, and CVE-2026-69875 each have a CVSS score of 8.0, High severity. CVE-2026-56172, CVE-2026-69377, CVE-2026-69436, CVE-2026-69459, CVE-2026-69513, CVE-2026-69790, CVE-2026-69801, CVE-2026-69822, and CVE-2026-83942 each have a CVSS score of 7.8, High severity. CVE-2026-69397, CVE-2026-69429, CVE-2026-69443, CVE-2026-69881, CVE-2026-69890, and CVE-2026-73017 each have a CVSS score of 7.5, High severity. CVE-2026-69460, CVE-2026-69553, CVE-2026-69602, and CVE-2026-69757 each have a CVSS score of 7.1, High severity. CVE-2026-69279, CVE-2026-69281, CVE-2026-69388, CVE-2026-69398, CVE-2026-69498, CVE-2026-69516, CVE-2026-69517, CVE-2026-69540, CVE-2026-69549, CVE-2026-69574, CVE-2026-69682, CVE-2026-69708, CVE-2026-69791, CVE-2026-69866, CVE-2026-69889, CVE-2026-70577, CVE-2026-72952, CVE-2026-73003, CVE-2026-73022, and CVE-2026-80093 each have a CVSS score of 7.0, High severity.