Authenticated code execution via heap buffer overflow
Published Sep 8, 2026 · Updated Sep 10, 2026
A heap-based buffer overflow in Microsoft Windows RRAS allows remote authenticated users to execute code through network requests. RRAS writes attacker-controlled network data past a heap buffer boundary; Microsoft has not disclosed the affected routine or message format. The RemoteAccess service is disabled by default, and successful exploitation grants code execution on a system where RRAS is enabled.
Summary
What happened
A heap-based buffer overflow in Microsoft Windows RRAS allows remote authenticated users to execute code through network requests. RRAS writes attacker-controlled network data past a heap buffer boundary; Microsoft has not disclosed the affected routine or message format. The RemoteAccess service is disabled by default, and successful exploitation grants code execution on a system where RRAS is enabled.
The record
- CVE
- CVE-2026-72950
- Published
- Sep 8, 2026
- Updated
- Sep 10, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-122, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 10, 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 <10.0.17763.9245
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
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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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