Remote code execution via RRAS heap overwrite
Published Jul 8, 2025 · Updated Feb 26, 2026
Heap-based buffer overflow in Microsoft Windows RRAS allows remote attackers to execute code over a network after user interaction. RRAS writes network-supplied data beyond a heap allocation; Microsoft has not identified the affected parser or message field. Successful exploitation requires no authentication but does require user interaction, and it grants code execution on the server.
Summary
What happened
Heap-based buffer overflow in Microsoft Windows RRAS allows remote attackers to execute code over a network after user interaction. RRAS writes network-supplied data beyond a heap allocation; Microsoft has not identified the affected parser or message field. Successful exploitation requires no authentication but does require user interaction, and it grants code execution on the server.
The record
- CVE
- CVE-2025-48824
- Published
- Jul 8, 2025
- Updated
- Feb 26, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-122
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 8, 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 <10.0.17763.7558
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.
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Technologies
Your stack
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Your stack
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