Microsoft Windows 11 26H1 vulnerabilities

CVE-2026-71348 [MEDIUM] CWE-122 CVE-2026-71348: Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code with a physical attack.

CVE-2026-68833 [MEDIUM] CWE-122 CVE-2026-68833: Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code with a ph Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code with a physical attack.

CVE-2026-69566 [MEDIUM] CWE-122 CVE-2026-69566: Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code with a ph Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code with a physical attack.

CVE-2026-71349 [MEDIUM] CWE-122 CVE-2026-71349: Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code with a physical attack.

CVE-2026-54132 [MEDIUM] CWE-122 CVE-2026-54132: Heap-based buffer overflow in Windows Kernel allows an unauthorized attacker to elevate privileges w Heap-based buffer overflow in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack.

CVE-2026-50668 [MEDIUM] CWE-122 CVE-2026-50668: Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges wit Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges with a physical attack.

CVE-2026-72939 [MEDIUM] CWE-476 CVE-2026-72939: Null pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an authorized at Null pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to deny service over a network.

CVE-2026-61345 [MEDIUM] CWE-476 CVE-2026-61345: Null pointer dereference in Microsoft Remote Registry Service allows an authorized attacker to deny Null pointer dereference in Microsoft Remote Registry Service allows an authorized attacker to deny service over a network.

CVE-2026-59138 [MEDIUM] CWE-476 CVE-2026-59138: Null pointer dereference in Microsoft Remote Registry Service allows an authorized attacker to deny Null pointer dereference in Microsoft Remote Registry Service allows an authorized attacker to deny service over a network.

CVE-2026-49799 [MEDIUM] CWE-400 CVE-2026-49799: Uncontrolled resource consumption in Windows Local Security Authority Subsystem Service (LSASS) allo Uncontrolled resource consumption in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.

CVE-2026-69940 [MEDIUM] CWE-125 CVE-2026-69940: Out-of-bounds read in Windows Client for NFS allows an unauthorized attacker to disclose information Out-of-bounds read in Windows Client for NFS allows an unauthorized attacker to disclose information over a network.

CVE-2026-70244 [MEDIUM] CWE-125 CVE-2026-70244: Out-of-bounds read in DNS Server allows an unauthorized attacker to disclose information over a netw Out-of-bounds read in DNS Server allows an unauthorized attacker to disclose information over a network.

CVE-2026-69955 [MEDIUM] CWE-125 CVE-2026-69955: Out-of-bounds read in Windows Client for NFS allows an unauthorized attacker to disclose information Out-of-bounds read in Windows Client for NFS allows an unauthorized attacker to disclose information over a network.

CVE-2026-70575 [MEDIUM] CWE-476 CVE-2026-70575: Null pointer dereference in Windows Schannel allows an authorized attacker to deny service over a ne Null pointer dereference in Windows Schannel allows an authorized attacker to deny service over a network.

CVE-2026-42903 [MEDIUM] CWE-476 CVE-2026-42903: Null pointer dereference in Windows Kerberos allows an authorized attacker to deny service over a ne Null pointer dereference in Windows Kerberos allows an authorized attacker to deny service over a network.

CVE-2026-26155 [MEDIUM] CWE-126 CVE-2026-26155: Microsoft Local Security Authority Subsystem Service Information Disclosure Vulnerability Microsoft Local Security Authority Subsystem Service Information Disclosure Vulnerability

CVE-2026-83706 [MEDIUM] CWE-416 CVE-2026-83706: Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally. Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-85859 [MEDIUM] CWE-476 CVE-2026-85859: Null pointer dereference in Windows Message Queuing Queue Manager allows an authorized attacker to d Null pointer dereference in Windows Message Queuing Queue Manager allows an authorized attacker to deny service over a network.

CVE-2026-85847 [MEDIUM] CWE-125 CVE-2026-85847: Out-of-bounds read in Windows Print Spooler Components allows an unauthorized attacker to disclose i Out-of-bounds read in Windows Print Spooler Components allows an unauthorized attacker to disclose information over a network.

CVE-2026-69482 [HIGH] CWE-379 CVE-2026-69482: Creation of temporary file in directory with insecure permissions in Windows Error Reporting allows Creation of temporary file in directory with insecure permissions in Windows Error Reporting allows an authorized attacker to perform tampering locally.