Memory disclosure via CD-ROM driver out-of-bounds read
Published Sep 8, 2026 · Updated Sep 9, 2026
Out-of-bounds read in the Windows CD-ROM Driver in affected Windows releases allows physically proximate attackers to disclose memory contents. Microsoft has not published the driver routine, input structure, or bounds-checking error that causes the read beyond the CWE-125 classification. Exploitation requires physical access to exercise the CD-ROM path, and the documented consequence is memory disclosure without integrity or availability impact.
Summary
What happened
Out-of-bounds read in the Windows CD-ROM Driver in affected Windows releases allows physically proximate attackers to disclose memory contents. Microsoft has not published the driver routine, input structure, or bounds-checking error that causes the read beyond the CWE-125 classification. Exploitation requires physical access to exercise the CD-ROM path, and the documented consequence is memory disclosure without integrity or availability impact.
The record
- CVE
- CVE-2026-78508
- Published
- Sep 8, 2026
- Updated
- Sep 9, 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 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 <10.0.17763.9245
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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