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.

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9Vendor sources

4,737Advisories collected

2,721Published or updated in 30 days

2,119Marked critical or high

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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.

AWS Security Bulletins 111 advisories

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Cisco Security Advisories 34 advisories

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Citrix Security Bulletins 17 advisories

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Delinea Security Advisories 7 advisories

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Fortinet PSIRT Advisories 40 advisories

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Ivanti Security Advisories 5 advisories

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Microsoft Security Response Center 4,355 advisories

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Palo Alto Networks Security Advisories 39 advisories

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Ubuntu Security Notices 129 advisories

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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.

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Microsoft Security Response CenterCVE-2026-78442

Published Sep 8, 2026

HighCVSS 8.8

Windows OLE DB Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft SQL Server 2017 for x64-based Systems (GDR), Microsoft SQL Server 2019 for x64-based Systems (GDR), Microsoft SQL Server 2017 for x64-based Systems (CU 31), Microsoft SQL Server 2019 for x64-based Systems (CU 32)

Fixed versions14.0.2130.4, 15.0.2190.7, 14.0.3550.4, 15.0.4490.9

Vendor guidance

Install KB5122775. Install KB5122773. Install KB5122774. Install KB5122772.

CVE-2026-78442

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Microsoft Security Response CenterCVE-2026-78441

Published Sep 8, 2026

HighCVSS 6.5

Windows OLE DB Information Disclosure Vulnerability

Out-of-bounds read in Windows OLE DB allows an unauthorized attacker to disclose information over a network.

Fixed versions14.0.2130.4, 15.0.2190.7, 14.0.3550.4, 15.0.4490.9

Vendor guidance

Install KB5122775. Install KB5122773. Install KB5122774. Install KB5122772.

CVE-2026-78441

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-77911

Published Sep 8, 2026

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 versionshttps://aka.ms/OfficeSecurityReleases, 16.0.17932.20960, 16.0.5569.1002

Vendor guidance

Click to Run Release Notes Install KB5002923.

CVE-2026-77911

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-77909

Published Sep 8, 2026

HighCVSS 7.7

Azure CycleCloud Information Disclosure Vulnerability

Insufficiently protected credentials in Azure CycleCloud allows an authorized attacker to disclose information over a network.

Affected productsAzure CycleCloud 8.9.2

Fixed versions8.9.2

Vendor guidance

Release Notes

CVE-2026-77909

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Microsoft Security Response CenterCVE-2026-77908

Published Sep 8, 2026

HighCVSS 8.8

Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

Improper control of generation of code ('code injection') in Microsoft Dynamics 365 allows an authorized attacker to execute code over a network.

Affected productsMicrosoft Dynamics 365 Customer Engagement V9.1

Fixed versions9.1.0048.0004

Vendor guidance

Install KB5123731.

CVE-2026-77908

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Microsoft Security Response CenterCVE-2026-77907

Published Sep 8, 2026

HighCVSS 8.8

Visual Studio Remote Code Execution Vulnerability

Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Visual Studio 2026 version 18.9

Fixed versions18.9.3

Vendor guidance

Release Notes

CVE-2026-77907

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-77906

Published Sep 8, 2026

HighCVSS 8.8

Visual Studio Remote Code Execution Vulnerability

Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Visual Studio 2026 version 18.9

Fixed versions18.9.3

Vendor guidance

Release Notes

CVE-2026-77906

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-77905

Published Sep 8, 2026

HighCVSS 7.0

Windows Management Instrumentation Elevation of Privilege Vulnerability

Use after free in Windows Management Instrumentation 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.

CVE-2026-77905

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Microsoft Security Response CenterCVE-2026-77904

Published Sep 8, 2026

HighCVSS 7.8

Windows Volume Manager Extension Driver Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Volume Manager Extension 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 versions10.0.17763.9245, 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.

CVE-2026-77904

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Microsoft Security Response CenterCVE-2026-77901

Published Sep 8, 2026

HighCVSS 8.8

Microsoft Office Word Remote Code Execution Vulnerability

Null pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

Fixed versions16.0.10417.20207, 16.0.20326.20138, 16.0.14334.20906, 16.0.17932.20976

Vendor guidance

Release Notes Install KB5002923.

CVE-2026-77901

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Microsoft Security Response CenterCVE-2026-77899

Published Sep 8, 2026

HighCVSS 7.0

Windows Security Center Elevation of Privilege Vulnerability

Use after free in Windows Security Center 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, 6.2.9200.26349

Vendor guidance

Install KB5124008. Install KB5124012. Install KB5123065.

CVE-2026-77899

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Microsoft Security Response CenterCVE-2026-77897

Published Sep 8, 2026

HighCVSS 7.0

Microsoft Power Automate Desktop Elevation of Privilege Vulnerability

Relative path traversal in Power Automate allows an authorized attacker to elevate privileges locally.

Affected productsPower Automate for Desktop, Power Automate agent for virtual desktops

Fixed versions2.71.115.26224

Vendor guidance

Release Notes

CVE-2026-77897

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Microsoft Security Response CenterCVE-2026-77896

Published Sep 8, 2026

HighCVSS 6.5

Windows Remote Desktop Client Denial of Service Vulnerability

Integer overflow or wraparound in Remote Desktop Client 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, 10.0.19044.7725, 10.0.19045.7725

Vendor guidance

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

CVE-2026-77896

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-77895

Published Sep 8, 2026

HighCVSS 7.5

Windows DHCP Server Denial of Service Vulnerability

Out-of-bounds read in Windows DHCP Server 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.

CVE-2026-77895

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-77894

Published Sep 8, 2026

HighCVSS 7.0

Windows Installer Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer 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.

CVE-2026-77894

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Microsoft Security Response CenterCVE-2026-77893

Published Sep 8, 2026

HighCVSS 7.5

Windows DHCP Server Denial of Service Vulnerability

Out-of-bounds read in Windows DHCP Server 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.

CVE-2026-77893

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-77892

Published Sep 8, 2026

HighCVSS 6.8

Windows Boot Manager Elevation of Privilege Vulnerability

No cwe for this issue in Windows Boot Manager 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. Install KB5123099. Install KB5123065. Install KB5123066.

CVE-2026-77892

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Microsoft Security Response CenterCVE-2026-77891

Published Sep 8, 2026

HighCVSS 6.4

Windows DHCP Server Remote Code Execution Vulnerability

Out-of-bounds read in Windows DHCP Server allows an authorized 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, 10.0.26100.33438, 10.0.14393.9512

Vendor guidance

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

CVE-2026-77891

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-77890

Published Sep 8, 2026

HighCVSS 7.5

Windows DHCP Server Denial of Service Vulnerability

Access of resource using incompatible type ('type confusion') in Windows DHCP Server 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.

CVE-2026-77890

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-77889

Published Sep 8, 2026

HighCVSS 7.5

Windows DHCP Server Denial of Service Vulnerability

Access of resource using incompatible type ('type confusion') in Windows DHCP Server 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.

CVE-2026-77889

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-77888

Published Sep 8, 2026

HighCVSS 7.5

Windows DHCP Server Denial of Service Vulnerability

Access of resource using incompatible type ('type confusion') in Windows DHCP Server 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.

CVE-2026-77888

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-77887

Published Sep 8, 2026

HighCVSS 6.4

Windows DHCP Server Remote Code Execution Vulnerability

Out-of-bounds read in Windows DHCP Server allows an authorized 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, 10.0.26100.33438, 10.0.14393.9512

Vendor guidance

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

CVE-2026-77887

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-77886

Published Sep 8, 2026

HighCVSS 7.5

Windows DHCP Server Denial of Service Vulnerability

Out-of-bounds read in Windows DHCP Server 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.

CVE-2026-77886

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-77503

Published Sep 8, 2026

HighCVSS 8.4

Windows NTFS Elevation of Privilege Vulnerability

Out-of-bounds read in Windows NTFS allows an unauthorized 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.

CVE-2026-77503

Read the vendor advisory Watch this product

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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.

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