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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.
Microsoft Security Response CenterCVE-2026-78514
HighCVSS 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Use after free 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-2026-78513
HighCVSS 5.5
Microsoft Office PowerPoint Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information locally.
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, 16.112.26083020, 16.0.14334.20906
Vendor guidance
Release Notes Install KB5002920.
Microsoft Security Response CenterCVE-2026-78512
HighCVSS 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Numeric truncation error in Microsoft Office Word 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 KB4011160. Install KB5002914.
Microsoft Security Response CenterCVE-2026-78511
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 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 KB5002923.
Microsoft Security Response CenterCVE-2026-78508
HighCVSS 4.6
Windows CD-ROM Driver Information Disclosure Vulnerability
Out-of-bounds read in Windows CD-ROM Driver allows an unauthorized attacker to disclose information 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 versions10.0.17763.9245, 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-2026-78507
HighCVSS 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Use after free in Microsoft Office Word 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
Microsoft Security Response CenterCVE-2026-78506
HighCVSS 5.5
Microsoft Office Word Information Disclosure Vulnerability
Improper null termination in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
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 KB5002923.
Microsoft Security Response CenterCVE-2026-78504
HighCVSS 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Stack-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-2026-78503
HighCVSS 6.5
Microsoft Office Word Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information 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 KB5002923.
Microsoft Security Response CenterCVE-2026-78502
HighCVSS 6.5
Microsoft Office Word Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information 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 KB5002923.
Microsoft Security Response CenterCVE-2026-78464
HighCVSS 7.0
Windows MIDI Service Module Elevation of Privileges Vulnerability
Time-of-check time-of-use (toctou) race condition in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
Affected productsWindows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems
Fixed versions10.0.26200.9445, 10.0.26100.9445, 10.0.28000.2954
Vendor guidance
Install KB5124008. Install KB5124012.
Microsoft Security Response CenterCVE-2026-78463
HighCVSS 8.8
Remote Desktop Client Remote Code Execution Vulnerability
Improper control of generation of code ('code injection') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Affected productsRemote Desktop client for Windows Desktop
Fixed versions1.2.7279.0
Vendor guidance
Release Notes
Microsoft Security Response CenterCVE-2026-78462
HighCVSS 8.8
Visual Studio Code Security Feature Bypass Vulnerability
Authorization bypass through user-controlled key in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.
Affected productsVisual Studio Code
Fixed versions1.136.2
Vendor guidance
Release Notes
Microsoft Security Response CenterCVE-2026-78461
HighCVSS 7.4
Visual Studio Code Security Feature Bypass Vulnerability
Improper limitation of a pathname to a restricted directory ('path traversal') in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.
Affected productsVisual Studio Code
Fixed versions1.136.2
Vendor guidance
Release Notes
Microsoft Security Response CenterCVE-2026-78457
HighCVSS 7.0
Windows Security Health Service Elevation of Privilege Vulnerability
Use after free in Windows Security Health Service allows an authorized attacker to elevate privileges locally.
Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows Server 2025 (Server Core installation), Windows 11 Version 25H2 for ARM64-based Systems
Fixed versions10.0.20348.5622, 10.0.26100.33438, 10.0.26200.9445, 10.0.26100.9445
Vendor guidance
Install KB5122882. Install KB5122871. Install KB5124008. Install KB5124012.
Microsoft Security Response CenterCVE-2026-78456
HighCVSS 8.8
SQL Server Remote Code Execution Vulnerability
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
Affected productsMicrosoft SQL Server 2022 for x64-based Systems (CU 26), Microsoft SQL Server 2022 for x64-based Systems (GDR)
Fixed versions16.0.4275.2, 16.0.1200.5
Vendor guidance
Install KB5122768. Install KB5122771.
Microsoft Security Response CenterCVE-2026-78455
HighCVSS 4.3
Xbox Information Disclosure Vulnerability
Out-of-bounds read in Xbox allows an unauthorized attacker to disclose information 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 versions10.0.17763.9245, 10.0.19044.7725, 10.0.19045.7725, 10.0.26200.9445
Vendor guidance
Install KB5122876. Install KB5122878. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099.
Microsoft Security Response CenterCVE-2026-78454
HighCVSS 5.5
Windows CD-ROM Driver Information Disclosure Vulnerability
Out-of-bounds read in Windows CD-ROM Driver 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, 10.0.19044.7725, 10.0.19045.7725, 10.0.26200.9445
Vendor guidance
Install KB5122876. Install KB5122878. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099.
Microsoft Security Response CenterCVE-2026-78453
HighCVSS 6.5
Microsoft Windows SCSI Class System File Information Disclosure Vulnerability
Integer underflow (wrap or wraparound) in Microsoft Windows SCSI Class System File 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 versions10.0.17763.9245, 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-2026-78452
HighCVSS 4.6
Microsoft Windows SCSI Class System File Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Windows SCSI Class System File allows an unauthorized attacker to disclose information 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 versions10.0.17763.9245, 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-2026-78451
HighCVSS 6.8
Microsoft Windows SCSI Class System File Elevation of Privilege Vulnerability
Untrusted pointer dereference in Microsoft Windows SCSI Class System File 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 versions10.0.17763.9245, 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-2026-78448
HighCVSS 7.8
Windows Biometric Service Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Biometric 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. Install KB5123099.
Microsoft Security Response CenterCVE-2026-78447
HighCVSS 7.8
Windows Biometric Service Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Biometric 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. Install KB5123099.
Microsoft Security Response CenterCVE-2026-78446
HighCVSS 5.3
Windows Distributed File System (DFS) Denial of Service Vulnerability
Use after free in Windows Distributed File System (DFS) allows an authorized 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, 10.0.19044.7725, 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.
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