Unauthenticated information disclosure via RDP out-of-bounds read
Published Jun 9, 2026 · Updated Jun 9, 2026
Out-of-bounds read in Microsoft Windows RDP allows remote attackers to disclose information over a network without authentication. Microsoft identifies RDP as the affected component but has not published the specific parser, message field, or bounds-check failure that permits the read. Exposure requires a network-reachable RDP path; successful exploitation reads information but does not alter data or interrupt service.
Summary
What happened
Out-of-bounds read in Microsoft Windows RDP allows remote attackers to disclose information over a network without authentication. Microsoft identifies RDP as the affected component but has not published the specific parser, message field, or bounds-check failure that permits the read. Exposure requires a network-reachable RDP path; successful exploitation reads information but does not alter data or interrupt service.
The record
- CVE
- CVE-2026-42908
- Published
- Jun 9, 2026
- Updated
- Jun 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-125
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 9, 2026CVE publishedPublication date reported by the CVE source.
- Jun 9, 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 <10.0.17763.8880
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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