Information disclosure via buffer over-read
Published Sep 9, 2025 · Updated Feb 20, 2026
A buffer over-read in Microsoft Windows Server RRAS allows remote attackers to disclose information through network traffic. Microsoft identifies RRAS as the affected locus but has not disclosed the parsing routine, protocol message, or field that is read beyond its buffer. Exploitation requires user interaction but no privileges, and the documented consequence is limited to information disclosure.
Summary
What happened
A buffer over-read in Microsoft Windows Server RRAS allows remote attackers to disclose information through network traffic. Microsoft identifies RRAS as the affected locus but has not disclosed the parsing routine, protocol message, or field that is read beyond its buffer. Exploitation requires user interaction but no privileges, and the documented consequence is limited to information disclosure.
The record
- CVE
- CVE-2025-53798
- Published
- Sep 9, 2025
- Updated
- Feb 20, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-126
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 9, 2025CVE publishedPublication date reported by the CVE source.
- Feb 20, 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 <10.0.17763.7792
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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