Home/CVE/Microsoft Active Directory Domain Services Privilege Escalation Vulnerability
CVE

CVE-2022-26923

Microsoft Active Directory Domain Services Privilege Escalation Vulnerability

Active Directory Domain Services Elevation of Privilege Vulnerability.

HIGH · CVSS 8.8 ⚠ CISA KEV EPSS 0.91596
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 0% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬢

Required Remediation

Apply updates per vendor instructions.

⬡

Weakness Classification

CWE-295Improper Certificate Validation
CWE-295Improper Certificate Validation
▤

Affected Products & Versions

14
microsoft windows 10 1507< 10.0.10240.19297
microsoft windows 10 1607< 10.0.14393.5850
microsoft windows 10 1809< 10.0.17763.4252
microsoft windows 10 1909< 10.0.18363.2274
microsoft windows 10 20h2< 10.0.19042.1706
microsoft windows 10 21h1< 10.0.19043.1706
microsoft windows 10 21h2< 10.0.19044.1706
microsoft windows 11 21h2< 10.0.22000.1817
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
exactmediumCertificate Use With No Strong Mapping
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 May 2022 · 09:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

3
cisaKEV-CVE-2022-26923
msrcCVE-2022-26923Elevation of Privilege
elastic-detectionelastic-detection-rules-windows-privilege_escalation_suspicious_dnshostname_update
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-26923PatchVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26923US Government Resource
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