CurrentChecked 4 minutes ago
Checked every 15 minutes
Browse this vendor's advisories
Official source
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.
11Vendor sources
18,563Advisories collected
6,580Published or updated in 30 days
8,318Marked 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.
CurrentChecked 9 minutes ago
Checked hourly
Browse this vendor's advisories
Official source
Check delayedChecked 29 days ago
Checked every 15 minutes
Browse this vendor's advisories
Official source
CurrentChecked 19 minutes ago
Checked hourly
Browse this vendor's advisories
Official source
CurrentChecked 19 minutes ago
Checked hourly
Browse this vendor's advisories
Official source
CurrentChecked 14 minutes ago
Checked every 15 minutes
Browse this vendor's advisories
Official source
CurrentChecked 4 minutes ago
Checked every 15 minutes
Browse this vendor's advisories
Official source
CurrentChecked about an hour ago
Checked every 6 hours
Browse this vendor's advisories
Official source
CurrentChecked 13 minutes ago
Checked every 15 minutes
Browse this vendor's advisories
Official source
Check delayedChecked 2 days ago
Checked hourly
Browse this vendor's advisories
Official source
Check delayedChecked 34 minutes ago
Checked every 15 minutes
Browse this vendor's advisories
Official source
18,563 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.
Microsoft Security Response CenterCVE-2026-49788
HighCVSS 7.5
HTTP/2 Denial of Service Vulnerability
Allocation of resources without limits or throttling in HTTP/2 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535.
Microsoft Security Response CenterCVE-2026-49787
HighCVSS 7.5
HTTP.sys Denial of Service Vulnerability
Allocation of resources without limits or throttling in Windows HTTP.sys 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535.
Microsoft Security Response CenterCVE-2026-49784
HighCVSS 7.0
Microsoft Windows App Store Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows App Store 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535.
Microsoft Security Response CenterCVE-2026-49783
HighCVSS 7.8
Secure Boot Security Feature Bypass Vulnerability
Improperly implemented security check for standard in Windows Secure Boot allows an authorized attacker to bypass a security feature 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535.
Microsoft Security Response CenterCVE-2026-49184
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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535. Install KB5099445. Install KB5099444.
Microsoft Security Response CenterCVE-2026-49181
HighCVSS 7.5
Windows DHCP Client Elevation of Privilege Vulnerability
Integer underflow (wrap or wraparound) in Windows DHCP Client allows an unauthorized 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.26100.33158, 10.0.14393.9339
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099536. Install KB5099535. Install KB5099445. Install KB5099444.
Microsoft Security Response CenterCVE-2026-49180
HighCVSS 5.5
Universal Plug and Play (upnp.dll) Information Disclosure Vulnerability
Improper link resolution before file access ('link following') in Universal Plug and Play (upnp.dll) 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535. Install KB5099445. Install KB5099444.
Microsoft Security Response CenterCVE-2026-49178
HighCVSS 8.8
Windows Active Directory Domain Services Remote Code Execution Vulnerability
Heap-based buffer overflow in Active Directory Domain Services 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535. Install KB5099445. Install KB5099444.
Microsoft Security Response CenterCVE-2026-49176
HighCVSS 7.8
Windows WalletService Elevation of Privilege Vulnerability
Improper privilege management in Windows WalletService 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535.
Microsoft Security Response CenterCVE-2026-49175
HighCVSS 7.8
Windows DNS Client Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges locally.
Affected productsWindows Server 2022, Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 21H2 for x64-based Systems
Fixed versions10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548, 10.0.26100.33158
Vendor guidance
Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649.
Microsoft Security Response CenterCVE-2026-49173
HighCVSS 7.8
Windows Kernel Elevation of Privilege Vulnerability
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
Affected productsWindows 11 version 26H1 for x64-based Systems, Windows 11 Version 26H1 for ARM64-based Systems
Fixed versions10.0.28000.2525
Vendor guidance
Install KB5101649.
Microsoft Security Response CenterCVE-2026-49172
HighCVSS 9.8
Windows FTP Service Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows FTP Service allows an unauthorized attacker to execute code over a network.
Affected productsWindows 11 Version 25H2 for x64-based Systems, Windows Server 2025, Windows 10 Version 21H2 for ARM64-based Systems, Windows Server 2022 (Server Core installation)
Fixed versions10.0.26200.8875, 10.0.26100.33158, 10.0.19044.7548, 10.0.20348.5386
Vendor guidance
Install KB5101650. Install KB5099536. Install KB5099539. Install KB5099540. Install KB5099538. Install KB5099414. Install KB5099535. Install KB5101649.
Microsoft Security Response CenterCVE-2026-49171
HighCVSS 7.5
Windows Speech Runtime Elevation of Privilege Vulnerability
Use after free in Microsoft Windows Speech 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535.
Microsoft Security Response CenterCVE-2026-49170
HighCVSS 7.8
Windows StateRepository API Server file Elevation of Privilege Vulnerability
Insufficient granularity of access control in Windows StateRepository API 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649.
Microsoft Security Response CenterCVE-2026-49169
HighCVSS 8.0
Windows DNS Server Remote Code Execution Vulnerability
Use after free in DNS Server allows an authorized attacker to execute code over a network.
Affected productsWindows Server 2025 (Server Core installation), Windows Server 2025
Fixed versions10.0.26100.33158
Vendor guidance
Install KB5099536.
Microsoft Security Response CenterCVE-2026-49168
HighCVSS 6.8
Storage Spaces Direct Elevation of Privilege Vulnerability
Integer overflow or wraparound in Windows Storage Spaces Direct allows an unauthorized attacker to elevate privileges with a physical attack.
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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535.
Microsoft Security Response CenterCVE-2026-49167
HighCVSS 4.7
Windows Kernel Elevation of Privilege Vulnerability
Use after free in Windows Kernel 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649.
Microsoft Security Response CenterCVE-2026-49166
HighCVSS 7.8
Windows Print Configuration Elevation of Privilege Vulnerability
Use after free in Microsoft Printer Drivers 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 versions10.0.26100.33158, 10.0.26200.8875, 10.0.26100.8875, 10.0.28000.2525
Vendor guidance
Install KB5099536. Install KB5101650. Install KB5101649.
Microsoft Security Response CenterCVE-2026-49165
HighCVSS 7.1
Microsoft Windows App Store Information Disclosure Vulnerability
Use of uninitialized resource in Microsoft Windows App Store 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 versions10.0.17763.9020, 10.0.20348.5386, 10.0.19044.7548, 10.0.19045.7548
Vendor guidance
Install KB5099538. Install KB5099540. Install KB5099539. Install KB5099536. Install KB5101650. Install KB5101649. Install KB5099535.
Microsoft Security Response CenterCVE-2026-48581
HighCVSS 7.8
Surface Broker SDMA Elevation of Privilege Vulnerability
Insufficient granularity of access control in Microsoft Surface allows an authorized attacker to elevate privileges locally.
Affected productsSurface Windows Dev Kit, Microsoft Surface Hub, Microsoft Surface Laptop Go 2, Surface Laptop 4 with AMD Processor
Microsoft Security Response CenterCVE-2026-48580
HighCVSS 5.5
Microsoft Excel Information Disclosure Vulnerability
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
Affected productsOffice Online Server, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, Microsoft 365 Apps for Enterprise for 32-bit Systems
Fixed versions16.0.10417.20175, https://aka.ms/OfficeSecurityReleases, 16.111.26071215, 16.0.5561.1001
Vendor guidance
Click to Run Release Notes Install KB5002884. Install KB5002886.
Microsoft Security Response CenterCVE-2026-48572
HighCVSS 7.0
Windows App Package Installer Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows App Installer 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 versions10.0.26100.33158, 10.0.26200.8875, 10.0.22631.7376, 10.0.26100.8875
Vendor guidance
Install KB5099536. Install KB5101650. Install KB5099414. Install KB5095051. Install KB5101649.
Microsoft Security Response CenterCVE-2026-48571
HighCVSS 7.0
Windows App Package Installer Elevation of Privilege Vulnerability
Use after free in Windows App Installer 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 versions10.0.26100.33158, 10.0.26200.8875, 10.0.22631.7376, 10.0.26100.8875
Vendor guidance
Install KB5099536. Install KB5101650. Install KB5099414. Install KB5101649. Install KB5095051.
Microsoft Security Response CenterCVE-2026-47642
HighCVSS 7.8
Microsoft Excel Remote Code Execution Vulnerability
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Affected productsMicrosoft Office 365 for Mac, Office Online Server, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions
Fixed versions16.111.26071215, 16.0.10417.20175, https://aka.ms/OfficeSecurityReleases
Vendor guidance
Release Notes Click to Run Install KB5002884.
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.