Microsoft Windows 11 Version 26H1 vulnerabilities

CVE-2026-84009 [MEDIUM] CWE-367 CVE-2026-84009: Time-of-check time-of-use (toctou) race condition in Windows Projected File System allows an authori Time-of-check time-of-use (toctou) race condition in Windows Projected File System allows an authorized attacker to perform tampering locally.

CVE-2026-27906 [MEDIUM] CWE-20 CVE-2026-27906: Improper input validation in Windows Hello allows an authorized attacker to bypass a security featur Improper input validation in Windows Hello allows an authorized attacker to bypass a security feature locally.

CVE-2026-102221 [MEDIUM] CWE-299 CVE-2026-102221: No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feat No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

CVE-2026-69713 [MEDIUM] CWE-1395 CVE-2026-69713: Dependency on vulnerable third-party component in Windows Secure Boot allows an authorized attacker Dependency on vulnerable third-party component in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

CVE-2026-70075 [MEDIUM] CWE-367 CVE-2026-70075: Time-of-check time-of-use (toctou) race condition in Windows Virtualization-Based Security (VBS) Enc Time-of-check time-of-use (toctou) race condition in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.

CVE-2026-32220 [MEDIUM] CWE-284 CVE-2026-32220: Improper access control in Windows Virtualization-Based Security (VBS) Enclave allows an authorized Improper access control in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to bypass a security feature locally.

CVE-2026-32209 [MEDIUM] CWE-284 CVE-2026-32209: Improper access control in Windows Filtering Platform (WFP) allows an authorized attacker to bypass Improper access control in Windows Filtering Platform (WFP) allows an authorized attacker to bypass a security feature locally.

CVE-2026-58528 [MEDIUM] CWE-125 CVE-2026-58528: Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to disclose information with a physical attack.

CVE-2026-88226 [MEDIUM] CWE-125 CVE-2026-88226: Out-of-bounds read in Windows Storage Port Driver allows an unauthorized attacker to disclose inform Out-of-bounds read in Windows Storage Port Driver allows an unauthorized attacker to disclose information with a physical attack.

CVE-2026-61350 [MEDIUM] CWE-126 CVE-2026-61350: Buffer over-read in Windows NTFS allows an unauthorized attacker to disclose information with a phys Buffer over-read in Windows NTFS allows an unauthorized attacker to disclose information with a physical attack.

CVE-2026-20928 [MEDIUM] CWE-212 CVE-2026-20928: Improper removal of sensitive information before storage or transfer in Windows Recovery Environment Improper removal of sensitive information before storage or transfer in Windows Recovery Environment Agent allows an unauthorized attacker to bypass a security feature with a physical attack.

CVE-2026-50453 [MEDIUM] CWE-125 CVE-2026-50453: Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to disclose information with a physical attack.

CVE-2026-78508 [MEDIUM] CWE-125 CVE-2026-78508: Out-of-bounds read in Windows CD-ROM Driver allows an unauthorized attacker to disclose information Out-of-bounds read in Windows CD-ROM Driver allows an unauthorized attacker to disclose information with a physical attack.

CVE-2026-69381 [MEDIUM] CWE-125 CVE-2026-69381: Out-of-bounds read in Windows Storage Port Driver allows an unauthorized attacker to disclose inform Out-of-bounds read in Windows Storage Port Driver allows an unauthorized attacker to disclose information with a physical attack.

CVE-2026-78452 [MEDIUM] CWE-125 CVE-2026-78452: Out-of-bounds read in Microsoft Windows SCSI Class System File allows an unauthorized attacker to di Out-of-bounds read in Microsoft Windows SCSI Class System File allows an unauthorized attacker to disclose information with a physical attack.

CVE-2026-49794 [MEDIUM] CWE-125 CVE-2026-49794: Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to disclose information with a physical attack.

CVE-2026-78516 [MEDIUM] CWE-126 CVE-2026-78516: Insertion of sensitive information into externally-accessible file or directory in Windows Storage a Insertion of sensitive information into externally-accessible file or directory in Windows Storage allows an authorized attacker to disclose information locally.

CVE-2026-78455 [MEDIUM] CWE-125 CVE-2026-78455: Out-of-bounds read in Xbox allows an unauthorized attacker to disclose information with a physical a Out-of-bounds read in Xbox allows an unauthorized attacker to disclose information with a physical attack.

CVE-2026-45642 [LOW] CWE-20 CVE-2026-45642: Improper input validation in Microsoft Azure Attestation service and Device Health Attestation Servi Improper input validation in Microsoft Azure Attestation service and Device Health Attestation Service allows an authorized attacker to perform spoofing with a physical attack.

CVE-2026-57085 [LOW] CWE-125 CVE-2026-57085: Out-of-bounds read in Windows Print Spooler Components allows an authorized attacker to disclose inf Out-of-bounds read in Windows Print Spooler Components allows an authorized attacker to disclose information locally.