Skip to main content
Live Webinar with SANS (June 25)— Agentic CTI Automation for Fun & ProfitRegister Free
Mallory
Back to vulnerabilities
High

Privilege Escalation in Active Directory Domain Services

IdentifiersCVE-2026-25177CWE-706

CVE-2026-25177 is an Active Directory Domain Services (AD DS) privilege-escalation vulnerability caused by improper restriction of names for files and other resources. The available description indicates that an authorized attacker can exploit the flaw over the network to elevate privileges. Supporting context further indicates successful exploitation could result in SYSTEM-level privileges and may interfere with Kerberos authentication behavior. Specific vulnerable functions, code paths, and affected object naming mechanisms are not provided in the supplied content.

Share:
For your environment

Are you exposed to this one?

Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.

Start free trial
ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an authorized attacker to elevate privileges in AD DS, with available reporting indicating the attacker may obtain SYSTEM-level privileges. The supplied context also indicates the issue may interfere with Kerberos authentication, which could disrupt authentication-dependent services or potentially force degraded or less secure authentication behavior.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure by limiting network access to AD DS systems to only required administrative and domain traffic, restricting use of authorized accounts that could be leveraged for exploitation, and closely monitoring domain controllers for anomalous privilege changes and Kerberos authentication issues. The supplied content does not provide an official vendor workaround or feature-level mitigation.

Remediation

Patch, then assume compromise.

Apply the Microsoft security update released as part of March 2026 Patch Tuesday for CVE-2026-25177. Because the vulnerability affects Active Directory Domain Services and may enable SYSTEM-level privilege escalation, prioritize patching domain controllers and other affected AD DS systems in accordance with Microsoft’s March 2026 guidance. No more specific remediation details are provided in the supplied content.
PUBLIC EXPLOITS

Exploits

No valid public exploits. Mallory filtered out 3 candidates as fakes, detection scripts, or README-only repos.

VALID 0 / 3 TOTALView more in app

All candidate exploits were filtered out by Mallory's validation.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Microsoft CorporationActive Directory Domain Servicesoperating_system
Microsoft CorporationWindows 10 1607operating_system
Microsoft CorporationWindows 10 1809operating_system
Microsoft CorporationWindows 10 21h2operating_system
Microsoft CorporationWindows 10 22h2operating_system
Microsoft CorporationWindows 11 23h2operating_system
Microsoft CorporationWindows 11 24h2operating_system
Microsoft CorporationWindows 11 25h2operating_system
Microsoft CorporationWindows 11 26h1operating_system
Microsoft CorporationWindows Server 2012operating_system
Microsoft CorporationWindows Server 2012 R2operating_system
Microsoft CorporationWindows Server 2016operating_system
Microsoft CorporationWindows Server 2019operating_system
Microsoft CorporationWindows Server 2022operating_system
Microsoft CorporationWindows Server 2022 23h2operating_system
Microsoft CorporationWindows Server 2025operating_system
Microsoft CorporationWindows Server 23h2operating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

10 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Start free trial
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity9

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-25177
NVD
nvd.nist.gov/vuln/detail/CVE-2026-25177
MITRE CWE · CWE-706
cwe.mitre.org
Vendor Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25177