Windows 11 26h1
by Microsoft
CVEs (900)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-56179 | Hig | 0.54 | 8.3 | 0.00 | Aug 11, 2026 | Origin validation error in Windows Network Address Translation (NAT) allows an unauthorized attacker to perform spoofing over an adjacent network. | ||
| CVE-2026-21250 | Hig | 0.54 | 7.8 | 0.01 | Feb 10, 2026 | Untrusted pointer dereference in Windows HTTP.sys allows an authorized attacker to elevate privileges locally. | ||
| CVE-2026-62889 | Hig | 0.53 | 8.1 | 0.01 | Aug 11, 2026 | Double free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-62819 | Hig | 0.53 | 8.1 | 0.01 | Aug 11, 2026 | Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine | ||
| CVE-2026-62792 | Hig | 0.53 | 8.1 | 0.01 | Aug 11, 2026 | Stack-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-62781 | Hig | 0.53 | 8.1 | 0.01 | Aug 11, 2026 | Heap-based buffer overflow in RPC Runtime allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-47652 | Hig | 0.53 | 8.2 | 0.00 | Jun 9, 2026 | Out-of-bounds read in Windows Hyper-V allows an unauthorized attacker to execute code locally. | ||
| CVE-2026-45635 | Hig | 0.53 | 8.1 | 0.01 | Jun 9, 2026 | Use after free in Universal Plug and Play (upnp.dll) allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-45599 | Hig | 0.53 | 8.1 | 0.01 | Jun 9, 2026 | Use after free in Universal Plug and Play (upnp.dll) allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-42981 | Hig | 0.53 | 8.1 | 0.01 | Jun 9, 2026 | Integer underflow (wrap or wraparound) in Windows Performance Monitor allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-42974 | Hig | 0.53 | 8.1 | 0.01 | Jun 9, 2026 | Integer underflow (wrap or wraparound) in Windows Performance Monitor allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-40415 | Hig | 0.53 | 8.1 | 0.01 | May 12, 2026 | Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-33827 | Hig | 0.53 | 8.1 | 0.01 | Apr 14, 2026 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-21525 | Med | 0.53 | 6.2 | 0.05 | KEV | Feb 10, 2026 | Null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to deny service locally. | |
| CVE-2026-26111 | Hig | 0.52 | 8.0 | 0.01 | Mar 10, 2026 | Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network. | ||
| CVE-2026-25173 | Hig | 0.52 | 8.0 | 0.01 | Mar 10, 2026 | Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network. | ||
| CVE-2026-25172 | Hig | 0.52 | 8.0 | 0.01 | Mar 10, 2026 | Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network. | ||
| CVE-2026-70347 | Hig | 0.51 | 7.8 | 0.00 | Aug 11, 2026 | Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally. | ||
| CVE-2026-70345 | Hig | 0.51 | 7.8 | 0.00 | Aug 11, 2026 | Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally. | ||
| CVE-2026-70344 | Hig | 0.51 | 7.8 | 0.00 | Aug 11, 2026 | Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally. |
- risk 0.54cvss 8.3epss 0.00
Origin validation error in Windows Network Address Translation (NAT) allows an unauthorized attacker to perform spoofing over an adjacent network.
- risk 0.54cvss 7.8epss 0.01
Untrusted pointer dereference in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
- risk 0.53cvss 8.1epss 0.01
Double free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network.
- risk 0.53cvss 8.1epss 0.01
Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine
- risk 0.53cvss 8.1epss 0.01
Stack-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
- risk 0.53cvss 8.1epss 0.01
Heap-based buffer overflow in RPC Runtime allows an unauthorized attacker to execute code over a network.
- risk 0.53cvss 8.2epss 0.00
Out-of-bounds read in Windows Hyper-V allows an unauthorized attacker to execute code locally.
- risk 0.53cvss 8.1epss 0.01
Use after free in Universal Plug and Play (upnp.dll) allows an unauthorized attacker to execute code over a network.
- risk 0.53cvss 8.1epss 0.01
Use after free in Universal Plug and Play (upnp.dll) allows an unauthorized attacker to execute code over a network.
- risk 0.53cvss 8.1epss 0.01
Integer underflow (wrap or wraparound) in Windows Performance Monitor allows an unauthorized attacker to execute code over a network.
- risk 0.53cvss 8.1epss 0.01
Integer underflow (wrap or wraparound) in Windows Performance Monitor allows an unauthorized attacker to execute code over a network.
- risk 0.53cvss 8.1epss 0.01
Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
- risk 0.53cvss 8.1epss 0.01
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
- risk 0.53cvss 6.2epss 0.05
Null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to deny service locally.
- risk 0.52cvss 8.0epss 0.01
Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.
- risk 0.52cvss 8.0epss 0.01
Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.
- risk 0.52cvss 8.0epss 0.01
Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.
- risk 0.51cvss 7.8epss 0.00
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
- risk 0.51cvss 7.8epss 0.00
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
- risk 0.51cvss 7.8epss 0.00
Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
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