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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11Vendor sources

16,884Advisories collected

6,380Published or updated in 30 days

6,999Marked 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.

AWS Security Bulletins 173 advisories

CurrentChecked 13 minutes ago

Checked every 15 minutes Browse this vendor's advisories Official source

Apple Security Releases 29 advisories

CurrentChecked 23 minutes ago

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Cisco Security Advisories 107 advisories

Check delayedChecked 24 days ago

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Citrix Security Bulletins 24 advisories

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Checked hourly Browse this vendor's advisories Official source

Delinea Security Advisories 14 advisories

CurrentChecked 23 minutes ago

Checked hourly Browse this vendor's advisories Official source

Fortinet PSIRT Advisories 55 advisories

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Checked every 15 minutes Browse this vendor's advisories Official source

Ivanti Security Advisories 9 advisories

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Checked every 15 minutes Browse this vendor's advisories Official source

Microsoft Security Response Center 15,972 advisories

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Checked every 6 hours Browse this vendor's advisories Official source

Palo Alto Networks Security Advisories 59 advisories

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Checked every 15 minutes Browse this vendor's advisories Official source

SonicWall PSIRT Advisories 12 advisories

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Checked hourly Browse this vendor's advisories Official source

Ubuntu Security Notices 430 advisories

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Checked every 15 minutes Browse this vendor's advisories Official source

16,884 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-2026-83699

Published Oct 13, 2026

HighCVSS 7.8

Windows Client-Side Caching (CSC) Service Elevation of Privilege Vulnerability

Stack-based buffer overflow in Windows Client-Side Caching (CSC) 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 versions10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83699

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83698

Published Oct 13, 2026

HighCVSS 7.8

Windows Client-Side Caching (CSC) Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Client-Side Caching (CSC) 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 versions10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83698

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83697

Published Oct 13, 2026

HighCVSS 4.7

Windows Modern Device Management (MDM) Tampering Vulnerability

Time-of-check time-of-use (toctou) race condition in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based Systems

Fixed versions10.0.20348.5761, 10.0.22631.7652, 10.0.26100.9711, 10.0.17763.9376

Vendor guidance

Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126651. Install KB5126657. Install KB5126646. Install KB5127646.

CVE-2026-83697

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83696

Published Oct 13, 2026

HighCVSS 7.0

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 26H2 for ARM64-based Systems, Windows 11 Version 26H2 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems

Fixed versions10.0.26300.9711, 10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807

Vendor guidance

Install KB5127648. Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5126653. Install KB5127646.

CVE-2026-83696

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83695

Published Oct 13, 2026

HighCVSS 5.5

Windows Event Logging Service Information Disclosure Vulnerability

Use of uninitialized resource in Windows Event Logging 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 versions10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83695

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83694

Published Oct 13, 2026

HighCVSS 7.0

Windows Volume Manager Extension Driver Elevation of Privilege Vulnerability

Out-of-bounds read 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 versions10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83694

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83693

Published Oct 13, 2026

HighCVSS 9.8

Windows Error Reporting Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Error Reporting 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 versions10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83693

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83692

Published Oct 13, 2026

HighCVSS 7.8

Windows Bind Filter Driver Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Bind Filter Driver 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 versions10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807, 10.0.26100.33650

Vendor guidance

Install KB5126655. Install KB5126657. Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646.

CVE-2026-83692

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83691

Published Oct 13, 2026

HighCVSS 7.8

Windows DHCP Server Elevation of Privilege Vulnerability

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

Affected productsWindows 11 Version 26H2 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019

Fixed versions10.0.26300.9711, 10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807

Vendor guidance

Install KB5127648. Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83691

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83690

Published Oct 13, 2026

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 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 versions10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646.

CVE-2026-83690

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83689

Published Oct 13, 2026

HighCVSS 7.0

Windows Error Reporting Elevation of Privilege Vulnerability

Use after free in Windows Error Reporting 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 versions10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83689

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83688

Published Oct 13, 2026

HighCVSS 8.8

Remote Desktop Client Remote Code Execution Vulnerability

Heap-based buffer overflow in Remote Desktop Client 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 versions10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83688

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83687

Published Oct 13, 2026

HighCVSS 7.0

Windows Connected User Experiences and Telemetry Elevation of Privilege Vulnerability

Use after free in Windows Connected User Experiences and Telemetry allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems, Windows Server 2025, Windows Server 2025 (Server Core installation)

Fixed versions10.0.22631.7652, 10.0.26200.9711, 10.0.26100.33650, 10.0.28000.3231

Vendor guidance

Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-83687

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83686

Published Oct 13, 2026

HighCVSS 5.5

Microsoft Windows Search Component Information Disclosure Vulnerability

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

Fixed versions10.0.26300.9711, 10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807

Vendor guidance

Install KB5127648. Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83686

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83685

Published Oct 13, 2026

HighCVSS 6.5

Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability

Buffer over-read in Windows IKE Extension 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 versions10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83685

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83683

Published Oct 13, 2026

HighCVSS 6.5

Windows Encrypting File System (EFS) Information Disclosure Vulnerability

Absolute path traversal in Windows Encrypting File System (EFS) allows an authorized attacker to disclose information over a network.

Fixed versions10.0.26300.9711, 10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807

Vendor guidance

Install KB5127648. Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83683

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83682

Published Oct 13, 2026

HighCVSS 7.0

Windows TCP/IP Elevation of Privilege Vulnerability

Use after free in Windows TCP/IP 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 versions10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83682

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83681

Published Oct 13, 2026

HighCVSS 5.5

Microsoft PowerToys Tampering Vulnerability

Weak authentication in Microsoft PowerToys allows an authorized attacker to perform tampering locally.

Affected productsMicrosoft PowerToys

Fixed versions0.102.0

Vendor guidance

Release Notes

CVE-2026-83681

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83680

Published Oct 13, 2026

HighCVSS 7.0

Windows Installer Elevation of Privilege Vulnerability

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

Fixed versions10.0.26300.9711, 10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807

Vendor guidance

Install KB5127648. Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83680

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83679

Published Oct 13, 2026

HighCVSS 7.8

Windows Defender Firewall Service Elevation of Privilege Vulnerability

Use after free in Windows Defender Firewall Service 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 versions10.0.26100.33650, 10.0.26200.9711, 10.0.22631.7652, 10.0.26100.9711

Vendor guidance

Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646.

CVE-2026-83679

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83678

Published Oct 13, 2026

HighCVSS 7.8

Windows TCP/IP Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows TCP/IP 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 versions10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807

Vendor guidance

Install KB5126651. Install KB5126655. Install KB5126657. Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83678

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83677

Published Oct 13, 2026

HighCVSS 7.5

Windows DHCP Client Denial of Service Vulnerability

Missing release of memory after effective lifetime in Windows DHCP Client allows an unauthorized attacker to deny service over a network.

Fixed versions10.0.26100.33650, 10.0.26200.9711, 10.0.26100.9711, 10.0.28000.3231

Vendor guidance

Install KB5126646. Install KB5127648. Install KB5127646.

CVE-2026-83677

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83676

Published Oct 13, 2026

HighCVSS 7.0

Windows Installer Elevation of Privilege Vulnerability

Integer underflow (wrap or wraparound) in Windows Installer 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 versions10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807, 10.0.26100.33650

Vendor guidance

Install KB5126655. Install KB5126657. Install KB5126646. Install KB5127648. Install KB5126653. Install KB5127646.

CVE-2026-83676

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-83675

Published Oct 13, 2026

HighCVSS 7.0

Windows Kernel Elevation of Privilege Vulnerability

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

Fixed versions10.0.26100.33650, 10.0.26200.9711, 10.0.26100.9711, 10.0.28000.3231

Vendor guidance

Install KB5126646. Install KB5127648. Install KB5127646.

CVE-2026-83675

Read the vendor advisory Watch this product

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.

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