Authenticated code execution via iSCSI heap overflow
Published Sep 8, 2026 · Updated Sep 9, 2026
Heap-based buffer overflow in Microsoft Windows iSCSI allows remote authenticated users to execute code over a network. Microsoft has not disclosed the affected iSCSI function, message field, or missing bounds check that permits the heap overwrite. Exploitation requires authenticated network access to the iSCSI service and grants code execution in the vulnerable Windows host context.
Summary
What happened
Heap-based buffer overflow in Microsoft Windows iSCSI allows remote authenticated users to execute code over a network. Microsoft has not disclosed the affected iSCSI function, message field, or missing bounds check that permits the heap overwrite. Exploitation requires authenticated network access to the iSCSI service and grants code execution in the vulnerable Windows host context.
The record
- CVE
- CVE-2026-69628
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-122, T1210
- Attack vector
- network
- Privileges
- authenticated
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.
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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