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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.

RSS for these results
Ubuntu Security NoticesUSN-8944-2
Severity not listed

USN-8944-2: ca-certificates update

USN-8944-1 updated ca-certificates. This update provides the corresponding changes for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS by removing the "emSign ECC Root CA - G3" and "Comodo AAA Services root" CA certificates. Original advisory details...

Vendor guidance

USN-8944-1 updated ca-certificates.

Read the vendor advisory
Ubuntu Security NoticesUSN-8945-1
Severity not listed

USN-8945-1: XZ Utils vulnerability

It was discovered that XZ Utils incorrectly handled certain memory allocation failures when reinitializing decoders for specific compressed file formats. An attacker could possibly use this issue to trigger an invalid memory write, resulting in a denial of service or arbitrary...

Read the vendor advisory
Ubuntu Security NoticesUSN-8944-1
Severity not listed

USN-8944-1: ca-certificates update

This update removes the "emSign ECC Root CA - G3" CA certificate due to intermediate CA certificates being compromised. In addition, in Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS, the ca-certificates package contained outdated CA certificates. This update refresh...

Vendor guidance

This update removes the "emSign ECC Root CA - G3" CA certificate due to intermediate CA certificates being compromised.

Read the vendor advisory
Ubuntu Security NoticesUSN-8942-1
Severity not listed

USN-8942-1: .NET vulnerabilities

Multiple security issues were discovered in .NET and this update includes new upstream .NET versions to fix these issues. .NET 8 has been updated to 8.0.32 in Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. .NET 10 has been updated to 10.0.13 in Ubuntu 24.04 LTS, Ubuntu 26.04 LTS and U...

Vendor guidance

Multiple security issues were discovered in .NET and this update includes new upstream .NET versions to fix these issues.

Read the vendor advisory
Ubuntu Security NoticesUSN-8943-1
Severity not listed

USN-8943-1: Protocol Buffers vulnerability

It was discovered that Protocol Buffers did not properly handle negative varint lengths or enforce recursion limits when parsing input in the PHP library. An attacker could possibly use this issue to cause applications using Protocol Buffers to crash or consume resources, resu...

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Ubuntu Security NoticesUSN-8708-2
Severity not listed

USN-8708-2: sudo-rs vulnerability

USN-8708-1 fixed a vulnerability in sudo-rs. This update provides the corresponding fix for Ubuntu 26.10. Original advisory details: It was discovered that sudo-rs incorrectly handled time-of-check vs time- of-use conditions in sudoedit. A local attacker with permission to edi...

Vendor guidance

USN-8708-1 fixed a vulnerability in sudo-rs.

Read the vendor advisory
Ubuntu Security NoticesUSN-8941-1
Severity not listed

USN-8941-1: Squid vulnerabilities

It was discovered that Squid incorrectly handled certain HTTP Transfer- Encoding headers. An attacker could possibly use this issue to perform HTTP request smuggling attacks, bypass security mechanisms, or poison web caches. (CVE-2026-61642) It was discovered that Squid incorr...

CVE-2026-61642CVE-2026-50012CVE-2026-47729CVE-2026-32748CVE-2026-33526CVE-2026-33515
Read the vendor advisory
Cisco Security Advisoriescisco-sa-cuic-sql-inject-2qbfWSm5
Medium

Cisco Unified Intelligence Center SQL Injection Vulnerability

A vulnerability in the web-based management interface of Cisco Unified Intelligence Center could allow an authenticated, local attacker to perform a blind SQL injection attack against an affected device. This vulnerability is due to insufficient validation of user-supplied inp...

Vendor guidance

Cisco has released software updates that address this vulnerability.

CVE-2026-20327
Read the vendor advisory
Microsoft Security Response CenterCVE-2026-96913
CriticalCVSS 8.8

Windows Kernel Elevation of Privilege Vulnerability

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

Affected productsWindows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems
Fixed versions10.0.26100.9711, 10.0.26200.9711, 10.0.26300.9711, 10.0.26100.33650
Vendor guidance

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

CVE-2026-96913
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-83839
HighCVSS 7.0

Windows Hyper-V Elevation of Privilege Vulnerability

Time-of-check time-of-use (toctou) race condition in Windows Hyper-V 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-2026-83839
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-83782
HighCVSS 9.8

Windows Shell Remote Code Execution Vulnerability

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

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. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-83782
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-70074
HighCVSS 5.5

Windows DNS Information Disclosure Vulnerability

Out-of-bounds read in Windows DNS 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, 10.0.26100.33650, 10.0.14393.9612
Vendor guidance

Install KB5126651. Install KB5126655. Install KB5126646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-70074
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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