# CVE-2026-69524: Microsoft Active Directory Domain Services use-after-free

Source: https://junglewise.ai/threats/cve-2026-69524-microsoft-active-directory-domain-services-use-after-free  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-08. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-69524 · Severity: high · CVSS 8.1 · Published 2026-09-08

Active Directory Domain Services (AD DS) is the core authentication and directory service for Windows enterprise networks. A use-after-free vulnerability allows an unauthenticated attacker on the network to execute arbitrary code with system privileges, potentially compromising an entire organization's identity infrastructure and enabling lateral movement across all connected systems.

Technologies: [Microsoft Active Directory Domain Services](https://junglewise.ai/threats/technologies/active-directory-domain-services). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-69524 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-69524 being exploited in the wild.

**How severe is CVE-2026-69524?** High severity, with a CVSS score of 8.1, published 8 September 2026.

**Which products and versions are affected?** Microsoft Active Directory Domain Services.

**Is there a fix for CVE-2026-69524?** 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-2026-69524 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-69524?** 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

This is a use-after-free vulnerability in Active Directory Domain Services that allows memory corruption. The flaw can be triggered remotely over the network without authentication, permitting an attacker to execute arbitrary code with elevated privileges. The vulnerability exists in a core component of AD DS responsible for processing network requests. No patch availability information is currently available in the advisory; organizations should monitor Microsoft security updates for remediation.

## Affected products

- Microsoft Active Directory Domain Services

## Timeline

- 2026-09-08: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69524](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69524)

## Related threats

- [Microsoft Active Directory Domain Services authentication bypass](https://junglewise.ai/threats/cve-2026-118735-weak-authentication-in-active-directory-domain-services-allows)
- [Microsoft Active Directory Domain Services privilege elevation](https://junglewise.ai/threats/cve-2026-118148-improper-authentication-in-active-directory-domain-services)
- [Microsoft Active Directory Domain Services authorization bypass](https://junglewise.ai/threats/cve-2026-118146-incorrect-authorization-in-active-directory-domain-services)
- [Microsoft Active Directory Domain Services out-of-bounds read](https://junglewise.ai/threats/cve-2026-105568-out-of-bounds-read-in-active-directory-domain-services-allows-an)
- [Microsoft Active Directory Domain Services out-of-bounds write](https://junglewise.ai/threats/cve-2026-88165-out-of-bounds-write-in-active-directory-domain-services-allows-an)