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

18,986Advisories collected

6,811Published or updated in 30 days

8,727Marked 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 182 advisories

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Apple Security Releases 40 advisories

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Cisco Security Advisories 107 advisories

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Citrix Security Bulletins 30 advisories

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Delinea Security Advisories 14 advisories

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Fortinet PSIRT Advisories 112 advisories

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Ivanti Security Advisories 10 advisories

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Microsoft Security Response Center 17,903 advisories

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Palo Alto Networks Security Advisories 69 advisories

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SonicWall PSIRT Advisories 12 advisories

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Ubuntu Security Notices 507 advisories

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18,986 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-2026-45596

Published Jun 9, 2026

HighCVSS 7.0

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Use after free in Windows Ancillary Function Driver for WinSock 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 versions10.0.17763.8880, 10.0.20348.5256, 10.0.19044.7417, 10.0.19045.7417

Vendor guidance

Install KB5094123. Install KB5094128. Install KB5094127. Install KB5094125. Install KB5094126. Install KB5093998. Install KB5095051. Install KB5094122. Install KB5094042. Install KB5094041.

CVE-2026-45596

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45595

Published Jun 9, 2026

HighCVSS 5.4

Windows Mark of the Web Security Feature Bypass Vulnerability

Protection mechanism failure in Windows Mark of the Web (MOTW) allows an unauthorized attacker to bypass a security feature 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 versions10.0.17763.8880, 10.0.20348.5256, 10.0.19044.7417, 10.0.19045.7417

Vendor guidance

Install KB5094123. Install KB5094128. Install KB5094127. Install KB5094125. Install KB5094126. Install KB5093998. Install KB5095051. Install KB5094122. Install KB5094041.

CVE-2026-45595

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45594

Published Jun 9, 2026

HighCVSS 5.5

Windows Application Identity (AppID) Information Disclosure Vulnerability

Exposure of sensitive information to an unauthorized actor in Windows Application Identity (AppID) Subsystem 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 versions10.0.17763.8880, 10.0.20348.5256, 10.0.19044.7417, 10.0.19045.7417

Vendor guidance

Install KB5094123. Install KB5094128. Install KB5094127. Install KB5094125. Install KB5094126. Install KB5093998. Install KB5095051. Install KB5094122.

CVE-2026-45594

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45591

Published Jun 9, 2026

HighCVSS 7.5

ASP.NET Core Denial of Service Vulnerability

Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Affected productsMicrosoft Visual Studio 2026 version 18.6, .NET 10.0 runtime installed on Windows, .NET 10.0 runtime installed on Mac OS, ASP.NET Core 10.0

Fixed versions18.6.3, 10.0.9, 8.0.28, 9.0.17

Vendor guidance

Release Notes Install KB5097148. Install KB5097149. Install KB5097150.

CVE-2026-45591

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45588

Published Jun 9, 2026

HighCVSS 7.9

Secure Boot Security Feature Bypass Vulnerability

Protection mechanism failure 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 versions10.0.17763.8880, 10.0.20348.5256, 10.0.19044.7417, 10.0.19045.7417

Vendor guidance

Install KB5094123. Install KB5094128. Install KB5094127. Install KB5094125. Install KB5094126. Install KB5093998. Install KB5095051. Install KB5094122. Install KB5094042. Install KB5094041.

CVE-2026-45588

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45586

Published Jun 9, 2026

HighCVSS 7.8

Windows Collaborative Translation Framework (CTFMON) Elevation of Privilege Vulnerability

Improper link resolution before file access ('link following') in Windows Collaborative Translation Framework 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 versions10.0.17763.8880, 10.0.20348.5256, 10.0.19044.7417, 10.0.19045.7417

Vendor guidance

Install KB5094123. Install KB5094128. Install KB5094127. Install KB5094125. Install KB5094126. Install KB5093998. Install KB5095051. Install KB5094122. Install KB5094042. Install KB5094041.

CVE-2026-45586

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45583

Published Jun 9, 2026

HighCVSS 7.5

Microsoft Exchange Server Remote Code Execution Vulnerability

Improper control of generation of code ('code injection') in Microsoft Exchange Server allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 14, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server Subscription Edition RTM

Fixed versions15.01.2507.071, 15.02.1544.043, 15.02.1748.048, 15.02.2562.045

Vendor guidance

Install KB5103215. Install KB5103214. Install KB5103213. Install KB5103212.

CVE-2026-45583

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Microsoft Security Response CenterCVE-2026-45503

Published Jun 9, 2026

HighCVSS 8.1

Microsoft Exchange Server Information Disclosure Vulnerability

Improper authorization in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.

Affected productsMicrosoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server 2019 Cumulative Update 14

Fixed versions15.01.2507.071, 15.02.2562.045, 15.02.1748.048, 15.02.1544.043

Vendor guidance

Install KB5103215. Install KB5103212. Install KB5103213. Install KB5103214.

CVE-2026-45503

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Microsoft Security Response CenterCVE-2026-45502

Published Jun 9, 2026

HighCVSS 5.0

Microsoft Exchange Server Information Disclosure Vulnerability

Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to disclose information over a network.

Affected productsMicrosoft Exchange Server 2019 Cumulative Update 14, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server Subscription Edition RTM

Fixed versions15.02.1544.043, 15.02.1748.048, 15.01.2507.071, 15.02.2562.045

Vendor guidance

Install KB5103214. Install KB5103213. Install KB5103215. Install KB5103212.

CVE-2026-45502

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45501

Published Jun 9, 2026

HighCVSS 6.5

Microsoft Exchange Server Spoofing Vulnerability

Server-side request forgery (ssrf) in Microsoft Exchange Server allows an authorized attacker to perform spoofing over a network.

Affected productsMicrosoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server 2019 Cumulative Update 14

Fixed versions15.02.2562.045, 15.01.2507.071, 15.02.1748.048, 15.02.1544.043

Vendor guidance

Install KB5103212. Install KB5103215. Install KB5103213. Install KB5103214.

CVE-2026-45501

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45500

Published Jun 9, 2026

HighCVSS 6.1

Microsoft Exchange Server Spoofing Vulnerability

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

Affected productsMicrosoft Exchange Server 2019 Cumulative Update 14, Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server 2016 Cumulative Update 23

Fixed versions15.02.1544.043, 15.02.2562.045, 15.02.1748.048, 15.01.2507.071

Vendor guidance

Install KB5103214. Install KB5103212. Install KB5103213. Install KB5103215.

CVE-2026-45500

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45491

Published Jun 9, 2026

HighCVSS 6.2

.NET Tampering Vulnerability

Improper link resolution before file access ('link following') in .NET allows an unauthorized attacker to perform tampering locally.

Affected products.NET 10.0 runtime installed on Windows, .NET 10.0 runtime installed on Mac OS, .NET 10.0 runtime installed on Linux, .NET 8.0

Fixed versions10.0.9, 8.0.28, 9.0.17

Vendor guidance

Install KB5097148. Install KB5097149. Install KB5097150.

CVE-2026-45491

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45490

Published Jun 9, 2026

HighCVSS 7.8

.NET SDK Elevation of Privilege Vulnerability

Improper authorization in .NET allows an authorized attacker to elevate privileges locally.

Affected products.NET 10.0 runtime installed on Windows, .NET 8.0 runtime installed on Windows, .NET 9.0 runtime installed on Windows

Fixed versions10.0.9, 8.0.28, 9.0.17

Vendor guidance

Install KB5097148. Install KB5097149. Install KB5097150.

CVE-2026-45490

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45487

Published Jun 9, 2026

HighCVSS 7.8

Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability

Time-of-check time-of-use (TOCTOU) race condition in Program Compatibility Assistant Service 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 versions10.0.20348.5256, 10.0.19044.7417, 10.0.19045.7417, 10.0.26100.32995

Vendor guidance

Install KB5094128. Install KB5094127. Install KB5094125. Install KB5094126. Install KB5093998. Install KB5095051.

CVE-2026-45487

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45484

Published Jun 9, 2026

HighCVSS 8.8

Microsoft SharePoint Elevation of Privilege Vulnerability

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

Affected productsMicrosoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition

Fixed versions16.0.5556.1005, 16.0.10417.20153, 16.0.19725.20384

Vendor guidance

Install KB5002880. Install KB5002874. Install KB5002873.

CVE-2026-45484

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45483

Published Jun 9, 2026

HighCVSS 4.6

Microsoft Office Project Server Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Project Server allows an authorized attacker to perform spoofing over a network.

Affected productsMicrosoft SharePoint Server Subscription Edition, Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019

Fixed versions16.0.19725.20384, 16.0.5556.1005, 16.0.10417.20153

Vendor guidance

Install KB5002873. Install KB5002880. Install KB5002874.

CVE-2026-45483

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45481

Published Jun 9, 2026

HighCVSS 7.3

Microsoft SharePoint Server Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

Affected productsMicrosoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition

Fixed versions16.0.5556.1005, 16.0.10417.20153, 16.0.19725.20384

Vendor guidance

Install KB5002880. Install KB5002874. Install KB5002873.

CVE-2026-45481

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45479

Published Jun 9, 2026

HighCVSS 4.6

Microsoft SharePoint Server Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

Affected productsMicrosoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition

Fixed versions16.0.5556.1005, 16.0.10417.20153, 16.0.19725.20384

Vendor guidance

Install KB5002880. Install KB5002874. Install KB5002873.

CVE-2026-45479

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45468

Published Jun 9, 2026

HighCVSS 4.6

Microsoft SharePoint Server Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

Affected productsMicrosoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition

Fixed versions16.0.5556.1005, 16.0.10417.20153, 16.0.19725.20384

Vendor guidance

Install KB5002880. Install KB5002874. Install KB5002873.

CVE-2026-45468

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45467

Published Jun 9, 2026

HighCVSS 4.6

Microsoft SharePoint Server Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

Affected productsMicrosoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition

Fixed versions16.0.5556.1005, 16.0.10417.20153, 16.0.19725.20384

Vendor guidance

Install KB5002880. Install KB5002874. Install KB5002873.

CVE-2026-45467

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45464

Published Jun 9, 2026

HighCVSS 5.4

Microsoft SharePoint Server Spoofing Vulnerability

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

Affected productsMicrosoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition

Fixed versions16.0.5556.1005, 16.0.10417.20153, 16.0.19725.20384

Vendor guidance

Install KB5002880. Install KB5002874. Install KB5002873.

CVE-2026-45464

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45462

Published Jun 9, 2026

HighCVSS 4.6

Microsoft SharePoint Server Spoofing Vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

Affected productsMicrosoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition

Fixed versions16.0.5556.1005, 16.0.10417.20153, 16.0.19725.20384

Vendor guidance

Install KB5002880. Install KB5002874. Install KB5002873.

CVE-2026-45462

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45454

Published Jun 9, 2026

HighCVSS 6.5

Microsoft SharePoint Remote Code Execution Vulnerability

Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Affected productsMicrosoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition

Fixed versions16.0.5556.1005, 16.0.10417.20153, 16.0.19725.20384

Vendor guidance

Install KB5002880. Install KB5002874. Install KB5002873.

CVE-2026-45454

Read the vendor advisory Watch this product

Microsoft Security Response CenterCVE-2026-45453

Published Jun 9, 2026

HighCVSS 5.4

Microsoft SharePoint Server Spoofing Vulnerability

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

Affected productsMicrosoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition

Fixed versions16.0.5556.1005, 16.0.10417.20153, 16.0.19725.20384

Vendor guidance

Install KB5002880. Install KB5002874. Install KB5002873.

CVE-2026-45453

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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