Microsoft Windows 11 23h2 — known CVE vulnerabilities
Every CVE whose affected-product data names Microsoft Windows 11 23h2, ordered by CVSS severity, with EPSS exploit prediction and CISA KEV status.
CVEs (200)
CVE-2025-49708 — CVSS 9.9 (critical): Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges over a network.
CVE-2025-47981 — CVSS 9.8 (critical): Heap-based buffer overflow in Windows SPNEGO Extended Negotiation allows an unauthorized attacker to execute code over a network.
CVE-2026-41096 — CVSS 9.8 (critical): Heap-based buffer overflow in Microsoft Windows DNS allows an unauthorized attacker to execute code over a network.
CVE-2026-44815 — CVSS 9.8 (critical): Stack-based buffer overflow in Windows DHCP Client allows an unauthorized attacker to execute code over a network.
CVE-2026-47291 — CVSS 9.8 (critical): Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.
CVE-2025-60724 — CVSS 9.8 (critical): Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.
CVE-2025-53766 — CVSS 9.8 (critical): Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.
CVE-2023-38545 — CVSS 9.8 (critical): This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy handshake. When curl is asked to pass along the host name to the…
CVE-2026-42904 — CVSS 9.6 (critical): Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network.
CVE-2026-45602 — CVSS 9.1 (critical): No cwe for this issue in Windows DHCP Server allows an unauthorized attacker to perform tampering over a network.
CVE-2025-24051 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a…
CVE-2026-32225 — CVSS 8.8 (high): Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.
CVE-2025-26669 — CVSS 8.8 (high): Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a…
CVE-2025-53145 — CVSS 8.8 (high): Access of resource using incompatible type ('type confusion') in Windows Message Queuing allows an authorized attacker to execute code over…
CVE-2025-33066 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a…
CVE-2025-33064 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.
CVE-2026-34329 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Message Queuing allows an unauthorized attacker to execute code over an adjacent network.
CVE-2026-25188 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to elevate privileges over an adjacent network.
CVE-2026-25177 — CVSS 8.8 (high): Improper restriction of names for files and other resources in Active Directory Domain Services allows an authorized attacker to elevate…
CVE-2025-62549 — CVSS 8.8 (high): Untrusted pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a…
CVE-2025-54110 — CVSS 8.8 (high): Integer overflow or wraparound in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2025-64678 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a…
CVE-2026-47653 — CVSS 8.8 (high): Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2025-29967 — CVSS 8.8 (high): Heap-based buffer overflow in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.
CVE-2025-21222 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.
CVE-2025-21221 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.
CVE-2026-21255 — CVSS 8.8 (high): Improper access control in Windows Hyper-V allows an authorized attacker to bypass a security feature locally.
CVE-2025-24056 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Telephony Server allows an unauthorized attacker to execute code over a network.
CVE-2025-53778 — CVSS 8.8 (high): Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a network.
CVE-2025-21205 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.
CVE-2025-55234 — CVSS 8.8 (high): SMB Server might be susceptible to relay attacks depending on the configuration. An attacker who successfully exploited these…
CVE-2025-58715 — CVSS 8.8 (high): Integer overflow or wraparound in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.
CVE-2025-53131 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code over a network.
CVE-2026-42985 — CVSS 8.8 (high): Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2025-58716 — CVSS 8.8 (high): Improper input validation in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.
CVE-2025-58718 — CVSS 8.8 (high): Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
CVE-2026-20868 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a…
CVE-2025-29962 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code over a network.
CVE-2025-49740 — CVSS 8.8 (high): Protection mechanism failure in Windows SmartScreen allows an unauthorized attacker to bypass a security feature over a network.
CVE-2025-62456 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to execute code over a network.
CVE-2025-49724 — CVSS 8.8 (high): Use after free in Windows Connected Devices Platform Service allows an unauthorized attacker to execute code over a network.
CVE-2025-27481 — CVSS 8.8 (high): Stack-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.
CVE-2025-53143 — CVSS 8.8 (high): Access of resource using incompatible type ('type confusion') in Windows Message Queuing allows an authorized attacker to execute code over…
CVE-2025-27477 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.
CVE-2026-40403 — CVSS 8.8 (high): Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to execute code locally.