Authenticated code execution via RRAS heap overflow
Published Aug 12, 2025 · Updated Feb 26, 2026
Heap-based buffer overflow in Microsoft Windows Server RRAS allows remote authenticated users to execute code over a network. RRAS writes network data beyond an allocated heap buffer, but Microsoft has not disclosed the affected parser or request field. Exploitation requires low privileges and user interaction and can compromise confidentiality, integrity, and availability through arbitrary code execution.
Summary
What happened
Heap-based buffer overflow in Microsoft Windows Server RRAS allows remote authenticated users to execute code over a network. RRAS writes network data beyond an allocated heap buffer, but Microsoft has not disclosed the affected parser or request field. Exploitation requires low privileges and user interaction and can compromise confidentiality, integrity, and availability through arbitrary code execution.
The record
- CVE
- CVE-2025-50160
- Published
- Aug 12, 2025
- Updated
- Feb 26, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-122, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 12, 2025CVE publishedPublication date reported by the CVE source.
- Feb 26, 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 <10.0.17763.7678
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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