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

• Severity: high (CVSS 8.5 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-05 · updated 2026-06-17
• Weakness: CWE-428

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.

Affected products

• Flexsense DiskBoss: 11.7.28
• Flexense DiskBoss Enterprise: 11.7.28
• Flexsense DiskBoss Pro: 11.7.28
• Flexsense DiskBoss Server: 11.7.28
• Flexsense DiskBoss Ultimate: 11.7.28

References

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

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