Authenticated code execution via freed-memory reuse
Published Sep 8, 2026 · Updated Sep 9, 2026
Use-after-free in Microsoft Windows Remote Desktop Services allows remote authenticated users to execute code over a network. Microsoft identifies reuse of freed memory in Remote Desktop Services but does not disclose the responsible function or input sequence. A low-privilege authenticated network session is required; successful exploitation runs attacker-controlled code in the service context.
Summary
What happened
Use-after-free in Microsoft Windows Remote Desktop Services allows remote authenticated users to execute code over a network. Microsoft identifies reuse of freed memory in Remote Desktop Services but does not disclose the responsible function or input sequence. A low-privilege authenticated network session is required; successful exploitation runs attacker-controlled code in the service context.
The record
- CVE
- CVE-2026-69599
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2025 (Server Core installation)
- Classifications
- CWE-416, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 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=10.0.26100.0 <10.0.26100.33438
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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