Vendor advisories

Microsoft Security Response Center

Browse 15,985 advisories from this official source. Search by product, CVE, severity, or advisory ID.

Current Checked 42 minutes ago Checked every 6 hours

15,985 advisories

Each date says whether the vendor published or updated the bulletin. A vendor bulletin describes products that may be affected. It does not prove that the vulnerable product or version is installed in your environment.

RSS for these results
Microsoft Security Response CenterCVE-2026-62736
HighCVSS 7.8

Windows DHCP Client Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows DHCP Client allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2025 (Server Core installation), Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems
Fixed versions10.0.26100.33296, 10.0.26100.33222, 10.0.26200.9168, 10.0.26200.9106
Vendor guidance

Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000.

Microsoft Security Response CenterCVE-2026-62734
HighCVSS 7.0

Windows Telephony Service Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-62732
HighCVSS 7.8

Windows Telephony Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-62730
HighCVSS 5.5

Windows Wired AutoConfig Service Information Disclosure Vulnerability

Buffer over-read in Windows Wired AutoConfig Service allows an authorized attacker to disclose information locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-62743
HighCVSS 5.5

Win32k Information Disclosure Vulnerability

Out-of-bounds read in Windows Win32K allows an authorized attacker to disclose information locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-62733
HighCVSS 7.8

Windows Win32k Elevation of Privilege Vulnerability

Out-of-bounds read in Windows Win32K allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-62726
HighCVSS 7.0

Windows Telephony Service Elevation of Privilege Vulnerability

Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-62725
HighCVSS 7.0

Windows Telephony Service Elevation of Privilege Vulnerability

Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-62711
HighCVSS 7.8

Windows Win32k Elevation of Privilege Vulnerability

Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-62710
HighCVSS 7.8

Windows Device Association Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418.

Microsoft Security Response CenterCVE-2026-62709
HighCVSS 5.5

Windows GDI+ Information Disclosure Vulnerability

Use of uninitialized resource in Windows GDI+ allows an authorized attacker to disclose information locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-62708
HighCVSS 6.4

Windows Kernel Elevation of Privilege Vulnerability

Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack.

Affected productsWindows Server 2025 (Server Core installation), Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems
Fixed versions10.0.26100.33296, 10.0.26100.33222, 10.0.26200.9168, 10.0.26200.9106
Vendor guidance

Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5121000.

Microsoft Security Response CenterCVE-2026-62701
HighCVSS 7.8

Windows Telephony Service Elevation of Privilege Vulnerability

Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-62700
HighCVSS 7.8

Windows NTFS Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-61929
HighCVSS 7.0

Windows Kernel Elevation of Privilege Vulnerability

Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2025 (Server Core installation), Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems
Fixed versions10.0.26100.33296, 10.0.26100.33222, 10.0.26200.9168, 10.0.26200.9106
Vendor guidance

Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000.

Microsoft Security Response CenterCVE-2026-61921
HighCVSS 6.5

Windows Remote Desktop Client Information Disclosure Vulnerability

Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-61918
HighCVSS 6.5

Windows Remote Desktop Client Information Disclosure Vulnerability

Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-61926
HighCVSS 7.8

Windows USB Driver Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-61360
HighCVSS 5.5

Windows GDI Information Disclosure Vulnerability

Untrusted pointer dereference in Windows GDI allows an authorized attacker to disclose information locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Microsoft Security Response CenterCVE-2026-61358
HighCVSS 7.8

Windows Accessibility Infrastructure (ATBroker.exe) Elevation of Privilege Vulnerability

Improper link resolution before file access ('link following') in Windows Accessibility Infrastructure (ATBroker.exe) allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000.

Microsoft Security Response CenterCVE-2026-61357
HighCVSS 7.8

Application Information Services Elevation of Privilege Vulnerability

Use after free in Application Information Services allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2025 (Server Core installation), Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems
Fixed versions10.0.26100.33296, 10.0.26100.33222, 10.0.26200.9168, 10.0.26200.9106
Vendor guidance

Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5121000.

Microsoft Security Response CenterCVE-2026-61355
HighCVSS 7.8

Windows Sensor Data Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Sensor Data Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems
Fixed versions10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663, 10.0.19045.7663
Vendor guidance

Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000.

Microsoft Security Response CenterCVE-2026-59125
HighCVSS 7.0

Virtual Hard Disk (VHD) Miniport Driver Elevation of Privilege Vulernability

Use after free in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418.

Microsoft Security Response CenterCVE-2026-59122
HighCVSS 7.0

Windows Telephony Service Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9121, 10.0.20348.5499, 10.0.20348.5440, 10.0.19044.7663
Vendor guidance

Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120249. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000. Install KB5120418. Install ...

Before you act

Start with the vendor's bulletin.

We normalize the fields that vendors publish so you can search and compare advisories in one place. We do not replace the original bulletin or turn a product-name match into proof that a system is vulnerable.

Confirm the installed product and version, read the linked vendor guidance, and test the recommended update or mitigation through your normal change process.

How we check our sources