Authenticated privilege escalation via unsynchronized pointer access
Published Jul 14, 2026 · Updated Jul 14, 2026
Use after free in Microsoft Windows Remote Desktop Services allows remote authenticated users to elevate privileges over a network. In rdpcorets.dll, CRdpPipeGfxPlugin::Enable reads a COM interface pointer twice without synchronization while TerminateInstance clears the same field after releasing its lock. Rapid reconnect and disconnect activity races graphics initialization against session teardown; the public reproducer demonstrates service crashes only, while Microsoft reports privilege escalation from the vulnerable path.
Summary
What happened
Use after free in Microsoft Windows Remote Desktop Services allows remote authenticated users to elevate privileges over a network. In rdpcorets.dll, CRdpPipeGfxPlugin::Enable reads a COM interface pointer twice without synchronization while TerminateInstance clears the same field after releasing its lock. Rapid reconnect and disconnect activity races graphics initialization against session teardown; the public reproducer demonstrates service crashes only, while Microsoft reports privilege escalation from the vulnerable path.
The record
- CVE
- CVE-2026-50369
- Published
- Jul 14, 2026
- Updated
- Jul 14, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-416, CWE-362, T1068
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 14, 2026CVE publishedPublication date reported by the CVE source.
- Jul 14, 2026Record 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=10.0.17763.0 <10.0.17763.9020
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
- syxlox CVE-2026-50369 denial-of-service reproducerproof of concept · demonstrated
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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