CVE-2026-83684
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Buffer Over-Read in Windows iSCSI Target Service
Vulnerability report for CVE-2026-83684, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-11-10
Last updated on: 2026-11-10
Assigner: Microsoft Corporation
Description
Description
Buffer over-read in Windows iSCSI Target Service allows an unauthorized attacker to disclose information over a network.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Microsoft | Windows Server 2016 | From 10.0.14393.0 (inc) to 10.0.14393.9688 (exc) |
| Microsoft | Windows Server 2016 (Server Core installation) | From 10.0.14393.0 (inc) to 10.0.14393.9688 (exc) |
| Microsoft | Windows Server 2019 | From 10.0.17763.0 (inc) to 10.0.17763.9487 (exc) |
| Microsoft | Windows Server 2019 (Server Core installation) | From 10.0.17763.0 (inc) to 10.0.17763.9487 (exc) |
| Microsoft | Windows Server 2022 | From 10.0.20348.0 (inc) to 10.0.20348.5870 (exc) |
| Microsoft | Windows Server 2025 | From 10.0.26100.0 (inc) to 10.0.26100.33822 (exc) |
| Microsoft | Windows Server 2025 (Server Core installation) | From 10.0.26100.0 (inc) to 10.0.26100.33822 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-126 | The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. |
