Physical information disclosure via out-of-bounds read
Published Sep 8, 2026 · Updated Sep 10, 2026
An out-of-bounds read in Microsoft Windows SCSI Class System File allows physically proximate attackers to disclose memory contents. Microsoft has not published the affected routine, the attacker-controlled input, or the missing bounds operation that permits the read. Exploitation requires physical access, and the published impact is limited to information disclosure without integrity or availability effects.
Summary
What happened
An out-of-bounds read in Microsoft Windows SCSI Class System File allows physically proximate attackers to disclose memory contents. Microsoft has not published the affected routine, the attacker-controlled input, or the missing bounds operation that permits the read. Exploitation requires physical access, and the published impact is limited to information disclosure without integrity or availability effects.
The record
- CVE
- CVE-2026-78452
- Published
- Sep 8, 2026
- Updated
- Sep 10, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-125
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 10, 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 <10.0.17763.9245
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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