Is CVE-2026-50328 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-50328 being exploited in the wild.

How severe is CVE-2026-50328?

High severity, with a CVSS score of 7.5, published 14 July 2026.

Which products and versions are affected?

Microsoft Windows Server Update Service (WSUS) Windows 10, Windows Server 2012, 2016, 2019.

Is there a fix for CVE-2026-50328?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-50328 attacked?

It is attacked over the network, in an operating system.

Am I affected by CVE-2026-50328?

Check whether you run Microsoft Windows Server Update Services (WSUS). Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-50328: Microsoft Windows Server Update Service uncaught exception

CVE-2026-50328 · Severity: high · CVSS 7.5 · Published 2026-07-14

A vulnerability in the Windows Server Update Service (WSUS) could allow an unauthorized attacker to disrupt the update process across a network. WSUS is a critical tool used by organizations to manage and distribute software updates to computers within their environment. An exploit could lead to a denial of service, preventing systems from receiving essential security patches and potentially impacting overall network stability.

Technologies: Microsoft Windows Server Update Services (WSUS). Vendors: Microsoft.

Quick answers

Is CVE-2026-50328 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-50328 being exploited in the wild.
How severe is CVE-2026-50328?: High severity, with a CVSS score of 7.5, published 14 July 2026.
Which products and versions are affected?: Microsoft Windows Server Update Service (WSUS) Windows 10, Windows Server 2012, 2016, 2019.
Is there a fix for CVE-2026-50328?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-50328 attacked?: It is attacked over the network, in an operating system.
Am I affected by CVE-2026-50328?: Check whether you run Microsoft Windows Server Update Services (WSUS). Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A vulnerability exists in Windows Server Update Service (WSUS) due to improper input validation leading to an uncaught exception (CWE-248). An unauthenticated attacker can exploit this over the network without user interaction. While the advisory mentions 'tampering,' the provided CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) specifically indicates a high impact on availability, suggesting a Denial of Service (DoS) condition. Affected versions include various releases of Windows 10 and Windows Server (2012 through 2019). Microsoft has released security updates to address this issue.

Affected products

Microsoft Windows Server Update Service (WSUS) Windows 10, Windows Server 2012, 2016, 2019

Timeline

2026-07-14: disclosed
2026-07-14: advisory

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50328

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