Local memory disclosure via out-of-bounds GDI read
Published Apr 14, 2026 · Updated Apr 14, 2026
An out-of-bounds read in Microsoft Windows GDI allows attackers to disclose memory contents locally after required user interaction. Microsoft has not disclosed the GDI code path, input type, or boundary-check failure that causes the read beyond an allocated buffer. Successful exploitation requires user interaction and exposes memory contents without reported integrity or availability impact.
Summary
What happened
An out-of-bounds read in Microsoft Windows GDI allows attackers to disclose memory contents locally after required user interaction. Microsoft has not disclosed the GDI code path, input type, or boundary-check failure that causes the read beyond an allocated buffer. Successful exploitation requires user interaction and exposes memory contents without reported integrity or availability impact.
The record
- CVE
- CVE-2026-27930
- Published
- Apr 14, 2026
- Updated
- Apr 14, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 14, 2026CVE publishedPublication date reported by the CVE source.
- Apr 14, 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 <10.0.17763.8644
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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