Local privilege escalation through undisclosed driver flaw
Published Oct 10, 2023 · Updated Apr 14, 2025
Improper access control in the Windows RDP Encoder Mirror Driver allows local users on affected Windows Server builds to gain elevated privileges. Microsoft has not disclosed the driver's vulnerable operation or how attacker-controlled input reaches the faulty access-control path. Exploitation requires existing low-privileged local access and can compromise system confidentiality, integrity, and availability.
Summary
What happened
Improper access control in the Windows RDP Encoder Mirror Driver allows local users on affected Windows Server builds to gain elevated privileges. Microsoft has not disclosed the driver's vulnerable operation or how attacker-controlled input reaches the faulty access-control path. Exploitation requires existing low-privileged local access and can compromise system confidentiality, integrity, and availability.
The record
- CVE
- CVE-2023-36790
- Published
- Oct 10, 2023
- Updated
- Apr 14, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2008 R2 Service Pack 1
- Classifications
- CWE-284, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 10, 2023CVE publishedPublication date reported by the CVE source.
- Apr 14, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=6.1.7601.0 <6.1.7601.26769
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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