Windows 11 26h1
by Microsoft
CVEs (334)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-26156 | Hig | 0.51 | 7.8 | 0.00 | Apr 14, 2026 | Heap-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code locally. | ||
| CVE-2026-26153 | Hig | 0.51 | 7.8 | 0.00 | Apr 14, 2026 | Out-of-bounds read in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges locally. | ||
| CVE-2026-26128 | Hig | 0.51 | 7.8 | 0.00 | Mar 10, 2026 | Improper authentication in Windows SMB Server allows an authorized attacker to elevate privileges locally. | ||
| CVE-2026-25187 | Hig | 0.51 | 7.8 | 0.03 | Mar 10, 2026 | Improper link resolution before file access ('link following') in Winlogon allows an authorized attacker to elevate privileges locally. | ||
| CVE-2026-48563 | Hig | 0.49 | 7.5 | 0.01 | Jun 9, 2026 | Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-44801 | Hig | 0.49 | 7.5 | 0.00 | Jun 9, 2026 | Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-42993 | Hig | 0.49 | 7.5 | 0.00 | Jun 9, 2026 | Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-42992 | Hig | 0.49 | 7.5 | 0.00 | Jun 9, 2026 | Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-42909 | Hig | 0.49 | 7.5 | 0.00 | Jun 9, 2026 | Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-40406 | Hig | 0.49 | 7.5 | 0.01 | May 12, 2026 | Use after free in Windows TCP/IP allows an unauthorized attacker to disclose information over a network. | ||
| CVE-2026-40405 | Hig | 0.49 | 7.5 | 0.01 | May 12, 2026 | Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over a network. | ||
| CVE-2026-35424 | Hig | 0.49 | 7.5 | 0.01 | May 12, 2026 | Missing release of memory after effective lifetime in Windows Internet Key Exchange (IKE) Protocol allows an unauthorized attacker to deny service over a network. | ||
| CVE-2026-33096 | Hig | 0.49 | 7.5 | 0.01 | Apr 14, 2026 | Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network. | ||
| CVE-2026-32071 | Hig | 0.49 | 7.5 | 0.01 | Apr 14, 2026 | Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network. | ||
| CVE-2026-40414 | Hig | 0.48 | 7.4 | 0.01 | May 12, 2026 | Windows TCP/IP Denial of Service Vulnerability | ||
| CVE-2026-40413 | Hig | 0.48 | 7.4 | 0.00 | May 12, 2026 | Windows TCP/IP Denial of Service Vulnerability | ||
| CVE-2026-32156 | Hig | 0.48 | 7.4 | 0.00 | Apr 14, 2026 | Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an unauthorized attacker to execute code locally. | ||
| CVE-2026-32202 | Med | 0.47 | 4.3 | 0.64 | KEV | Apr 14, 2026 | Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network. | |
| CVE-2026-32149 | Hig | 0.47 | 7.3 | 0.00 | Apr 14, 2026 | Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally. | ||
| CVE-2026-45653 | Hig | 0.46 | 7.0 | 0.00 | Jun 9, 2026 | Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. |
- risk 0.51cvss 7.8epss 0.00
Heap-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code locally.
- risk 0.51cvss 7.8epss 0.00
Out-of-bounds read in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges locally.
- risk 0.51cvss 7.8epss 0.00
Improper authentication in Windows SMB Server allows an authorized attacker to elevate privileges locally.
- risk 0.51cvss 7.8epss 0.03
Improper link resolution before file access ('link following') in Winlogon allows an authorized attacker to elevate privileges locally.
- risk 0.49cvss 7.5epss 0.01
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- risk 0.49cvss 7.5epss 0.00
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- risk 0.49cvss 7.5epss 0.00
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- risk 0.49cvss 7.5epss 0.00
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- risk 0.49cvss 7.5epss 0.00
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- risk 0.49cvss 7.5epss 0.01
Use after free in Windows TCP/IP allows an unauthorized attacker to disclose information over a network.
- risk 0.49cvss 7.5epss 0.01
Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over a network.
- risk 0.49cvss 7.5epss 0.01
Missing release of memory after effective lifetime in Windows Internet Key Exchange (IKE) Protocol allows an unauthorized attacker to deny service over a network.
- risk 0.49cvss 7.5epss 0.01
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
- risk 0.49cvss 7.5epss 0.01
Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.
- risk 0.48cvss 7.4epss 0.01
Windows TCP/IP Denial of Service Vulnerability
- risk 0.48cvss 7.4epss 0.00
Windows TCP/IP Denial of Service Vulnerability
- risk 0.48cvss 7.4epss 0.00
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an unauthorized attacker to execute code locally.
- risk 0.47cvss 4.3epss 0.64
Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
- risk 0.47cvss 7.3epss 0.00
Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally.
- risk 0.46cvss 7.0epss 0.00
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
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