Is CVE-2026-105568 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-105568 being exploited in the wild.

How severe is CVE-2026-105568?

Medium severity, with a CVSS score of 6.5, published 10 November 2026.

Is there a fix for CVE-2026-105568?

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-2026-105568 attacked?

It is attacked over the network, in a hosted service.

Am I affected by CVE-2026-105568?

Check whether you run Microsoft Active Directory Domain Services. 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-2026-105568: Microsoft Active Directory Domain Services out-of-bounds read

CVE-2026-105568 · Severity: medium · CVSS 6.5 · Published 2026-11-10

Active Directory Domain Services, which manages user identities and permissions across enterprise networks, contains an out-of-bounds memory read flaw. An authenticated attacker on the network could exploit this to crash the service, causing users to lose access to network resources and authentication services. This requires valid network credentials to exploit.

Technologies: Microsoft Active Directory Domain Services. Vendors: Microsoft.

Quick answers

Is CVE-2026-105568 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-105568 being exploited in the wild.
How severe is CVE-2026-105568?: Medium severity, with a CVSS score of 6.5, published 10 November 2026.
Which products and versions are affected?: Microsoft Active Directory Domain Services.
Is there a fix for CVE-2026-105568?: 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-2026-105568 attacked?: It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-105568?: Check whether you run Microsoft Active Directory Domain Services. 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

An out-of-bounds read vulnerability in Active Directory Domain Services permits an authorized network attacker to trigger a denial of service condition. The flaw requires network access and valid authentication credentials; exploitation causes service disruption. A fix is available from Microsoft.

Affected products

Microsoft Active Directory Domain Services

Timeline

2026-11-10: disclosed

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105568

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