Microsoft
Microsoft Windows 11 23h2: vulnerabilities and CVEs
Microsoft Windows 11 23h2 has 2,442 published vulnerabilities, 1,365 of them in the last 12 months. 51 are rated critical and 63 are listed by CISA as actively exploited.
CVEs2,442
Last 12 months1,365
Critical51
Actively exploited63
All vulnerabilities in the catalogue →⭐ Follow this technology
🔴 Actively exploited (CISA KEV)
| CVE | Severity | EPSS | Active exploitation | Published | Description |
|---|---|---|---|---|---|
| CVE-2026-81963 | High (7.8) | 0.39% | ⚠ Active exploitation | Sep 8, 2026 | Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally. |
| CVE-2026-33824 | Critical (9.8) | 1.6% | ⚠ Active exploitation | Apr 14, 2026 | Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network. |
| CVE-2026-68820 | High (7) | 0.33% | ⚠ Active exploitation | Aug 11, 2026 | Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally. |
| CVE-2026-32202 | Medium (4.3) | 4.9% | ⚠ Active exploitation | Apr 14, 2026 | Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network. |
| CVE-2023-36424 | High (7.8) | 12% | ⚠ Active exploitation | Nov 14, 2023 | Windows Common Log File System Driver Elevation of Privilege Vulnerability |
| CVE-2026-21533 | High (7.8) | 4.1% | ⚠ Active exploitation | Feb 10, 2026 | Improper privilege management in Windows Remote Desktop allows an authorized attacker to elevate privileges locally. |
| CVE-2026-21525 | Medium (6.2) | 4.8% | ⚠ Active exploitation | Feb 10, 2026 | Null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to deny service locally. |
| CVE-2026-21519 | High (7.8) | 2.5% | ⚠ Active exploitation | Feb 10, 2026 | Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally. |
| CVE-2026-21510 | High (8.8) | 24% | ⚠ Active exploitation | Feb 10, 2026 | Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network. |
| CVE-2026-21513 | High (8.8) | 16% | ⚠ Active exploitation | Feb 10, 2026 | Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network. |
| CVE-2026-20805 | Medium (5.5) | 7.2% | ⚠ Active exploitation | Jan 13, 2026 | Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally. |
| CVE-2025-62221 | High (7.8) | 2.5% | ⚠ Active exploitation | Dec 9, 2025 | Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally. |
| CVE-2025-62215 | High (7) | 6.0% | ⚠ Active exploitation | Nov 11, 2025 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Kernel allows an authorized attacker to elevate privileges locally. |
| CVE-2025-33073 | High (8.8) | 83% | ⚠ Active exploitation | Jun 10, 2025 | Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network. |
| CVE-2025-59230 | High (7.8) | 2.7% | ⚠ Active exploitation | Oct 14, 2025 | Improper access control in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally. |
| CVE-2025-24990 | High (7.8) | 6.4% | ⚠ Active exploitation | Oct 14, 2025 | Microsoft is aware of vulnerabilities in the third party Agere Modem driver that ships natively with supported Windows operating systems. This is an announcement of the upcoming removal of ltmdm64.sys driver. The driver… |
| CVE-2025-47827 | Medium (4.6) | 4.9% | ⚠ Active exploitation | Jun 5, 2025 | In IGEL OS before 11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a cryptographic signature. Ultimately, a crafted root filesystem can be mounted from an unverified SquashFS… |
| CVE-2025-33053 | High (8.8) | 87% | ⚠ Active exploitation | Jun 10, 2025 | External control of file name or path in Internet Shortcut Files allows an unauthorized attacker to execute code over a network. |
| CVE-2025-32701 | High (7.8) | 1.4% | ⚠ Active exploitation | May 13, 2025 | Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally. |
| CVE-2025-32706 | High (7.8) | 2.3% | ⚠ Active exploitation | May 13, 2025 | Improper input validation in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally. |
Latest vulnerabilities
| CVE | Severity | EPSS | Active exploitation | Published | Description |
|---|---|---|---|---|---|
| CVE-2026-85360 | High (7) | 0.26% | — | Sep 8, 2026 | Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. |
| CVE-2026-84001 | High (7.5) | 1.2% | — | Sep 8, 2026 | Out-of-bounds read in Windows Key Distribution Center allows an unauthorized attacker to deny service over a network. |
| CVE-2026-84000 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to execute code locally. |
| CVE-2026-83998 | High (8.8) | 0.82% | — | Sep 8, 2026 | Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network. |
| CVE-2026-83997 | High (8.1) | 0.71% | — | Sep 8, 2026 | Use after free in Windows Message Queuing allows an unauthorized attacker to execute code over a network. |
| CVE-2026-83996 | High (8.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83995 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83992 | High (8.8) | 0.82% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Imaging Component allows an unauthorized attacker to execute code over a network. |
| CVE-2026-83991 | Medium (5.5) | 0.30% | — | Sep 8, 2026 | Missing authentication for critical function in Windows Cloud Files Mini Filter Driver allows an authorized attacker to perform tampering locally. |
| CVE-2026-83990 | High (7.8) | 0.33% | — | Sep 8, 2026 | Stack-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83989 | High (7.5) | 1.2% | — | Sep 8, 2026 | Out-of-bounds read in Windows Services for NFS ONCRPC XDR Driver allows an unauthorized attacker to deny service over a network. |
| CVE-2026-83988 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83987 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83986 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83985 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83983 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83982 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83981 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83980 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83979 | High (7.8) | 0.33% | — | Sep 8, 2026 | Use after free in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83978 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83977 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83976 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83975 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83974 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83973 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83972 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83971 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83970 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |
| CVE-2026-83969 | High (7.8) | 0.33% | — | Sep 8, 2026 | Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally. |