Information disclosure via RRAS 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 memory contents over a network. Microsoft has not disclosed the affected RRAS function, input format, or request path beyond identifying an out-of-bounds read. Exploitation requires user interaction; the reported consequence is disclosure only, with no write or service-interruption capability.
Summary
What happened
A buffer over-read in Microsoft Windows Server RRAS allows remote attackers to disclose memory contents over a network. Microsoft has not disclosed the affected RRAS function, input format, or request path beyond identifying an out-of-bounds read. Exploitation requires user interaction; the reported consequence is disclosure only, with no write or service-interruption capability.
The record
- CVE
- CVE-2025-53796
- 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
Compare your product and version with the public record. A matching version still requires validation against your environment.
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
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo