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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
16,884Advisories collected
6,352Published or updated in 30 days
6,999Marked 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.

16,884 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-2025-21863
MediumCVSS 7.8

io_uring: prevent opcode speculation

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the mos...

Affected productsazl3 kernel 6.6.82.1-1 on Azure Linux 3.0, azl3 kernel 6.6.78.1-3 on Azure Linux 3.0, cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0, cbl2 kernel 5.15.200.1-1 on CBL Mariner 2.0
Fixed versions6.6.82.1-1
Vendor guidance

CBL-Mariner Releases Release Notes

CVE-2025-21863
Read the vendor advisory Watch this product
Ubuntu Security NoticesUSN-8487-2
Severity not listed

USN-8487-2: curl regression

USN-8487-1 fixed vulnerabilities in curl. Unfortunately that update contained an incomplete fix for CVE-2026-8927. This update fixes the problem. Original advisory details: Andrew Nesbitt discovered that curl could reuse an existing live connection during STARTTLS-based connec...

Vendor guidance

USN-8487-1 fixed vulnerabilities in curl.

CVE-2026-8927CVE-2026-8286CVE-2026-8458CVE-2026-8924CVE-2026-8925CVE-2026-8926
Read the vendor advisory
Ubuntu Security NoticesUSN-8835-1
Severity not listed

USN-8835-1: Emacs vulnerability

It was discovered that Emacs improperly handled specially crafted SVG images, resulting in memory corruption. An attacker could possibly use this issue to cause Emacs to crash, resulting in a denial of service, or obtain sensitive information.

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Ubuntu Security NoticesUSN-8832-1
Severity not listed

USN-8832-1: Booth vulnerability

It was discovered that Booth did not properly validate message authentication codes under certain circumstances. A remote attacker could possibly use this issue to bypass authentication.

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Ubuntu Security NoticesUSN-8829-1
Severity not listed

USN-8829-1: Plasma Workspace vulnerability

Fabian Vogt discovered that Plasma Workspace did not properly authenticate local clients connecting to the session manager. A local attacker could possibly use this issue to execute arbitrary code as another user.

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Ubuntu Security NoticesUSN-8827-1
Severity not listed

USN-8827-1: Erlang vulnerabilities

It was discovered that the Erlang Port Mapper Daemon did not properly handle slow connections. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2026-42792) It was discovered that Erlang incorrectly handled certain external term format data, le...

CVE-2026-42792CVE-2026-55737CVE-2026-54890CVE-2026-75538CVE-2026-59250CVE-2026-55953
Read the vendor advisory
Ubuntu Security NoticesUSN-8836-1
Severity not listed

USN-8836-1: FreeRDP vulnerabilities

It was discovered that FreeRDP contained multiple security issues. An attacker could possibly use these issues to obtain sensitive information, cause FreeRDP to crash, resulting in a denial of service, or execute arbitrary code.

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Ubuntu Security NoticesUSN-8833-1
Severity not listed

USN-8833-1: libvirt vulnerabilities

It was discovered that libvirt did not properly validate newline characters in DNS TXT record values and SRV record attributes in its virtual network driver. A local attacker with permission to define virtual networks could possibly use this issue to inject arbitrary dnsmasq c...

CVE-2026-61477CVE-2026-61478CVE-2026-63622CVE-2026-63623CVE-2026-18917CVE-2026-77159
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Microsoft Security Response CenterCVE-2026-81355
CriticalCVSS 7.5

Virtual Hard Disk (VHD) Miniport Driver Remote Code Execution Vulnerability

Heap-based buffer overflow in Virtual Hard Disk (VHD) Miniport Driver 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, 10.0.19044.7725, 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-2026-81355
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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