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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
16,745Advisories collected
6,303Published or updated in 30 days
6,969Marked critical or high
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The original vendor bulletin remains the authority. SecurityAlert gives you one place to find it and compare the details vendors publish in different formats.

16,745 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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Palo Alto Networks Security AdvisoriesCVE-2026-0307
HighCVSS 8.5

CVE-2026-0307: GlobalProtect App: Local Privilege Escalation Vulnerabilities

Multiple local privilege escalation vulnerabilities in the Palo Alto Networks GlobalProtect™ app allows a local user to escalate their privileges to NT AUTHORITY\SYSTEM on Windows and root on macOS and Linux. This enables a non-administrative user to execute arbitrary commands...

Affected productsGlobalProtect App, GlobalProtect App 6.3, GlobalProtect App 6.0, GlobalProtect App 6.2
Fixed versionsGlobalProtect App 6.3 >= 6.3.3-h15 (6.3.3-c63) on Linux, >= 6.3.3-h16 (6.3.3-1199) on macOS, >= 6.3.3-h16 (6.3.3-1199) on Windows, GlobalProtect App 6.0 >= 6.0.15 on Linux (ETA: 10/29), >= 6.0.15 on macOS (ETA: 10/29), >= 6.0.15 on Windows (ETA: 10/29), GlobalProtect App 6.2 >= 6.2.8-h15 (6.2.8-1084) on macOS, >= 6.2.8-h15 (6.2.8-1084) on Windows, GlobalProtect App All on iOS, All on Android, All on ChromeOS
Vendor guidance

VERSION MINOR VERSION SUGGESTED SOLUTION GlobalProtect App 6.2/6.3 on Linux 6.2.0 through 6.3.3-h14 Upgrade to 6.3.3-h15 (6.3.3-c63) or later. GlobalProtect App 6.0 on Linux 6.0.0 through 6.0.14 Upgrade to 6.0.15 or l...

CVE-2026-0307
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-83654
HighCVSS 7.8

Windows Modern Device Management (MDM) Elevation of Privilege Vulnerability

Missing authentication for critical function in Windows Modern Device Management (MDM) 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-2026-83654
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Microsoft Security Response CenterCVE-2026-97776
CriticalCVSS 8.8

Microsoft Office Excel Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office LTSC 2021 for 64-bit editions, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2024 for 64-bit editions, Microsoft Office LTSC 2024 for 32-bit editions
Fixed versions16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases, 16.114.26101123
Vendor guidance

Release Notes Install KB5002928.

CVE-2026-97776
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-96222
CriticalCVSS 7.4

Active Directory Federation Services (AD FS) Spoofing Vulnerability

Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.

Affected productsSystem.Security.Cryptography.Xml on .NET 8.0 runtime installed on Windows, System.Security.Cryptography.Xml on .NET 8.0 runtime installed on Linux, System.Security.Cryptography.Xml on .NET 8.0 runtime installed on Mac OS, Windows 10 Version 1809 for 32-bit Systems
Fixed versions8.0.5, 10.0.17763.9376, 10.0.20348.5761, 10.0.26100.33650
Vendor guidance

Release Notes Install KB5126651. Install KB5126655. Install KB5126646. Install KB5126868. Install KB5126836. Install KB5127689. Install KB5127690. Install KB5127691. Install KB5127692. Install KB5127693. Install KB512...

CVE-2026-96222
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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