Windows Secure Boot vulnerabilities
10 known CVE vulnerabilities in Windows Secure Boot, translated and rated.
- CVE-2026-49783High
Improperly implemented security check for Secure Boot in Windows allows an authorized attacker to bypass a security feature locally.
- CVE-2026-48578High
Windows Secure Boot has an improper access control vulnerability that allows an authorized attacker to elevate privileges locally.
- CVE-2026-48576High
A vulnerability in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
- CVE-2026-48575High
A protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
- CVE-2026-48573High
A vulnerability in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
- CVE-2026-48570High
A protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
- CVE-2026-48568High
A protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
- CVE-2026-45654High
Improper access control in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
- CVE-2026-45588High
A protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
- CVE-2026-21265Medium
The vulnerability involves expiring Microsoft certificates in Secure Boot. Failure to update them may cause loss of Secure Boot functionality and protection against malware. The update process can be disrupted by firmware defects.