CVE-2022-26923: Microsoft Active Directory Domain Services Privilege Escalation Vulnerability
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
An authenticated user could manipulate attributes on computer accounts they own or manage, and acquire a certificate from Active Directory Certificate Services that would allow for privilege escalation to SYSTEM.
CSIRTS triage
- What
- The vulnerability allows an authenticated user to escalate privileges to SYSTEM by manipulating attributes on computer accounts.
- Who is affected
- Authenticated users of Microsoft Active Directory Domain Services are affected.
- Urgency
- Remediation is urgent as exploitation is possible and the severity is critical.
- Action
- Apply the latest security updates for Active Directory.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2022-26923
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Exploitation confirmedCVE-2022-26923Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2022-26923 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Microsoft Active Directory
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- criticalexploitedCVE-2021-42287: Microsoft Active Directory Domain Services Privilege Escalation Vulnerabilitycisa-kev · 2022-04-11
- criticalexploitedCVE-2021-42278: Microsoft Active Directory Domain Services Privilege Escalation Vulnerabilitycisa-kev · 2022-04-11
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