RCE via RRAS server-response heap overflow
Published Nov 11, 2025 · Updated Nov 11, 2025
Heap-based buffer overflow in Microsoft Windows RRAS allows remote authenticated users to execute code through a malicious server response. Microsoft has not disclosed the parsing routine or memory-copy operation that writes beyond the RRAS heap allocation. Exploitation requires a domain-authenticated attacker to induce a domain-joined user to send a request to the malicious server, with code executing on that user's system.
Summary
What happened
Heap-based buffer overflow in Microsoft Windows RRAS allows remote authenticated users to execute code through a malicious server response. Microsoft has not disclosed the parsing routine or memory-copy operation that writes beyond the RRAS heap allocation. Exploitation requires a domain-authenticated attacker to induce a domain-joined user to send a request to the malicious server, with code executing on that user's system.
The record
- CVE
- CVE-2025-62452
- Published
- Nov 11, 2025
- Updated
- Nov 11, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-122, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 11, 2025CVE publishedPublication date reported by the CVE source.
- Nov 11, 2025Record 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 <10.0.17763.8027
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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