# CVE-2026-118148: Microsoft Active Directory Domain Services privilege elevation

Source: https://junglewise.ai/threats/cve-2026-118148-improper-authentication-in-active-directory-domain-services  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-118148 · Severity: high · CVSS 7.5 · Published 2026-11-10

Active Directory Domain Services, which manages user identities and permissions across corporate networks, contains an authentication flaw that allows an authorized attacker to escalate their privileges to higher access levels. An attacker with valid credentials could gain administrative control over domain resources, compromising the security of the entire network infrastructure.

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-2026-118148 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-118148 being exploited in the wild.

**How severe is CVE-2026-118148?** High severity, with a CVSS score of 7.5, published 10 November 2026.

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

**Is there a fix for CVE-2026-118148?** 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-2026-118148 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-118148?** 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 improper authentication vulnerability in Active Directory Domain Services allows a network-based privilege elevation attack. An attacker with valid domain credentials can exploit the flaw to gain elevated privileges, potentially achieving domain administrative access. The advisory indicates this requires an authenticated attacker but does not specify if a patch is available.

## Affected products

- Microsoft Active Directory Domain Services

## Timeline

- 2026-11-10: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118148](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118148)

## 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 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)
- [Microsoft Active Directory Domain Services out-of-bounds read](https://junglewise.ai/threats/cve-2026-83667-out-of-bounds-read-in-active-directory-domain-services-allows-an)