Microsoft Windows 11 Version 23H2 vulnerabilities

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-2026-72939 [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-2025-59185 [MEDIUM] CWE-73 CVE-2025-59185: External control of file name or path in Windows Core Shell allows an unauthorized attacker to perfo External control of file name or path in Windows Core Shell allows an unauthorized attacker to perform spoofing 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-2025-59244 [MEDIUM] CWE-73 CVE-2025-59244: External control of file name or path in Windows Core Shell allows an unauthorized attacker to perfo External control of file name or path in Windows Core Shell allows an unauthorized attacker to perform spoofing over a network.

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-2024-20661 [HIGH] CWE-476 CVE-2024-20661: Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability

CVE-2025-21276 [HIGH] CWE-191 CVE-2025-21276: Windows MapUrlToZone Denial of Service Vulnerability Windows MapUrlToZone Denial of Service Vulnerability

CVE-2025-21207 [HIGH] CWE-400 CVE-2025-21207: Windows Connected Devices Platform Service (Cdpsvc) Denial of Service Vulnerability Windows Connected Devices Platform Service (Cdpsvc) Denial of Service Vulnerability

CVE-2024-38091 [HIGH] CWE-166 CVE-2024-38091: Microsoft WS-Discovery Denial of Service Vulnerability Microsoft WS-Discovery Denial of Service Vulnerability

CVE-2024-21343 [HIGH] CWE-125 CVE-2024-21343: Windows Network Address Translation (NAT) Denial of Service Vulnerability Windows Network Address Translation (NAT) Denial of Service Vulnerability

CVE-2024-21302 [MEDIUM] CWE-284 CVE-2024-21302: Summary: As of July 8, 2025 Microsoft has completed mitigations to address this vulnerability. See K Summary: As of July 8, 2025 Microsoft has completed mitigations to address this vulnerability. See KB5042562: Guidance for blocking rollback of virtualization-based security related updates and the Recommended Actions section of this CVE for guidance on how to protect your systems from this vulnerability. An elevation of privilege vulnerability exis

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.