Vendor advisories

Security advisories from the vendors you use.

Search new and updated bulletins from Microsoft, Citrix, Cisco, Palo Alto Networks, Fortinet, Ivanti, Delinea, Ubuntu, and AWS. We keep each vendor's advisory ID, affected products, CVEs, severity, dates, and available fix guidance together.

9Vendor sources
4,737Advisories collected
2,721Published or updated in 30 days
2,119Marked critical or high
Coverage

Connected directly to official vendor sources

The original vendor bulletin remains the authority. SecurityAlert gives you one place to find it and compare the details vendors publish in different formats.

4,737 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-2026-69682
HighCVSS 7.0

Windows Host Guardian Service Elevation of Privilege Vulnerability

Use after free in Windows Host Guardian 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012.

Microsoft Security Response CenterCVE-2026-69681
HighCVSS 8.0

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

Heap-based buffer overflow in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099. Install KB5123065. Install KB5123066.

Microsoft Security Response CenterCVE-2026-69680
HighCVSS 8.1

Windows DNS Spoofing Vulnerability

Origin validation error in Windows DNS allows an unauthorized attacker to perform spoofing 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.26100.33438, 10.0.14393.9512
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122871. Install KB5123099. Install KB5123065. Install KB5123066.

Microsoft Security Response CenterCVE-2026-69679
HighCVSS 5.7

Windows DHCP Server Denial of Service Vulnerability

Out-of-bounds read in Windows DHCP Server allows an authorized attacker to deny service over an adjacent 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.26100.33438, 10.0.14393.9512
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122871. Install KB5123099. Install KB5123065. Install KB5123066.

Microsoft Security Response CenterCVE-2026-69672
HighCVSS 5.5

Windows DNS Information Disclosure Vulnerability

Use of uninitialized resource in Windows DNS 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.26100.33438, 10.0.14393.9512
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122871. Install KB5123099. Install KB5123065. Install KB5123066.

Microsoft Security Response CenterCVE-2026-69671
HighCVSS 8.8

Microsoft Office Word Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office 365 for Mac, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit Systems
Fixed versions16.0.10417.20207, 16.0.20326.20138, 16.0.14334.20906, 16.0.17932.20976
Vendor guidance

Release Notes Install KB5002923.

Microsoft Security Response CenterCVE-2026-69669
HighCVSS 8.8

Windows Kernel Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Kernel allows an unauthorized attacker to execute code 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099. Install KB5123065. Install KB5123066.

Microsoft Security Response CenterCVE-2026-69654
HighCVSS 7.0

Windows Accounts Control Elevation of Privilege Vulnerability

Use after free in Windows Accounts Control 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099.

Microsoft Security Response CenterCVE-2026-69652
HighCVSS 7.0

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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099.

Microsoft Security Response CenterCVE-2026-69648
HighCVSS 7.0

Windows Notification Elevation of Privilege Vulnerability

Use after free in Windows Notification 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 versions10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725, 10.0.26100.33438
Vendor guidance

Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012.

Microsoft Security Response CenterCVE-2026-69646
HighCVSS 8.3

Skype for Business Spoofing Vulnerability

Improper verification of cryptographic signature in Skype for Business allows an unauthorized attacker to perform spoofing over an adjacent network.

Affected productsSkype for Business Server 2019 CU8, Skype for Business Server Subscription Edition CU1, Skype for Business Server 2015 CU13
Fixed versions7.0.2046.569, 7.0.2046.879, 6.0.9319.885
Vendor guidance

Install KB5123300. Install KB5123287. Install KB5123301.

Microsoft Security Response CenterCVE-2026-69645
HighCVSS 7.0

Windows Message Queuing Elevation of Privilege Vulnerability

Use after free in Windows Message Queuing 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099. Install KB5123065. Install KB5123066.

Microsoft Security Response CenterCVE-2026-69643
HighCVSS 8.0

Windows Spaceport.sys Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to elevate privileges 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099. Install KB5123065. Install KB5123066.

Microsoft Security Response CenterCVE-2026-69642
HighCVSS 6.5

Skype for Business Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Skype for Business allows an unauthorized attacker to perform spoofing over a network.

Affected productsSkype for Business Server 2015 CU13, Skype for Business Server 2019 CU8, Skype for Business Server Subscription Edition CU1
Fixed versions6.0.9319.885, 7.0.2046.569, 7.0.2046.879
Vendor guidance

Install KB5123301. Install KB5123300. Install KB5123287.

Microsoft Security Response CenterCVE-2026-69641
HighCVSS 9.1

Microsoft Exchange Server Elevation of Privilege Vulnerability

Missing authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

Affected productsMicrosoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server 2019 Cumulative Update 14, Microsoft Exchange Server Subscription Edition RTM
Fixed versions15.01.2507.073, 15.02.1748.051, 15.02.1544.046, 15.02.2562.049
Vendor guidance

Install KB5121611. Install KB5121609. Install KB5121610. Install KB5121608.

Microsoft Security Response CenterCVE-2026-69638
HighCVSS 8.4

Windows NTFS Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099. Install KB5123065. Install KB5123066.

Microsoft Security Response CenterCVE-2026-69637
HighCVSS 5.7

Windows DHCP Server Denial of Service Vulnerability

Out-of-bounds read in Windows DHCP Server allows an authorized attacker to deny service over an adjacent 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.26100.33438, 10.0.14393.9512
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122871. Install KB5123099. Install KB5123065. Install KB5123066.

Microsoft Security Response CenterCVE-2026-69636
HighCVSS 6.5

Microsoft Office SharePoint Information Disclosure Vulnerability

Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.

Affected productsMicrosoft SharePoint Server Subscription Edition
Fixed versions16.0.20326.20082
Vendor guidance

Install KB5002908.

Microsoft Security Response CenterCVE-2026-69631
HighCVSS 7.5

Windows DNS Denial of Service Vulnerability

Integer overflow or wraparound in Windows DNS allows an unauthorized attacker to deny service 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.26100.33438, 10.0.14393.9512
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122871. Install KB5123099. Install KB5123065. Install KB5123066.

Microsoft Security Response CenterCVE-2026-69630
HighCVSS 7.0

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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099. Install KB5123065. Install KB5123066.

Microsoft Security Response CenterCVE-2026-69629
HighCVSS 8.8

Microsoft Office Outlook Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems
Fixed versions16.0.10417.20207, 16.0.20326.20138, 16.0.14334.20906, 16.0.17932.20976
Vendor guidance

Release Notes Install KB5002919.

Microsoft Security Response CenterCVE-2026-69628
HighCVSS 8.8

Windows iSCSI Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows iSCSI allows an authorized attacker to execute code 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099. Install KB5123065. Install KB5123066.

Microsoft Security Response CenterCVE-2026-69627
HighCVSS 5.5

Windows Remote Desktop Licensing Service Information Disclosure Vulnerability

Out-of-bounds read in Windows Remote Desktop Licensing 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 versions10.0.17763.9245, 10.0.20348.5622, 10.0.19044.7725, 10.0.19045.7725
Vendor guidance

Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099. Install KB5123065. Install KB5123066.

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.

Read how SecurityAlert collects and checks threat intelligence.