CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2026-83684 Windows iSCSI Target Service Information Disclosure Vulnerability
High (7.5) in microsoft. EPSS 1.0% estimated probability of exploitation activity in the next 30 days.
Buffer over-read in Windows iSCSI Target Service allows an unauthorized attacker to disclose information over a network.
Severity
- EPSS
- 1.0% estimated probability of exploitation activity in the next 30 days; 63rd percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: yes · Technical impact: partial, assessed 2026-11-11. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-126 Buffer Over-read
- Published
- Modified
- Assigned by
- microsoft (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
- microsoft:windows server 2016
- microsoft:windows server 2016 (server core installation)
- microsoft:windows server 2019
- microsoft:windows server 2019 (server core installation)
- microsoft:windows server 2022
- microsoft:windows server 2025
- microsoft:windows server 2025 (server core installation)
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Microsoft Windows Server 2016 | from 10.0.14393.0 before 10.0.14393.9688 |
| Microsoft Windows Server 2016 (Server Core installation) | from 10.0.14393.0 before 10.0.14393.9688 |
| Microsoft Windows Server 2019 | from 10.0.17763.0 before 10.0.17763.9487 |
| Microsoft Windows Server 2019 (Server Core installation) | from 10.0.17763.0 before 10.0.17763.9487 |
| Microsoft Windows Server 2022 | from 10.0.20348.0 before 10.0.20348.5870 |
| Microsoft Windows Server 2025 | from 10.0.26100.0 before 10.0.26100.33822 |
| Microsoft Windows Server 2025 (Server Core installation) | from 10.0.26100.0 before 10.0.26100.33822 |