CVE-2017-20218
Serviio PRO 1.8 Local Privilege Escalation via Unquoted Path
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
Serviio PRO 1.8 contains an unquoted search path vulnerability in the Windows service that allows local users to execute arbitrary code with elevated privileges by placing malicious executables in the system root path. Additionally, improper directory permissions with full access for the Users group allow authenticated users to replace the executable file with arbitrary binaries, enabling privilege escalation during service startup or system reboot.
| CWE | CWE-428 |
| Vendor | serviio |
| Product | serviio pro |
| Published | Mar 15, 2026 |
| Last Updated | Mar 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Serviio / Serviio PRO
1.8.0.0 PRO 1.7.1 1.7.0 1.6.1
References
zeroscience.mk: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5405.php blogs.securiteam.com: https://blogs.securiteam.com/index.php/archives/3094 exploit-db.com: https://www.exploit-db.com/exploits/41959/ packetstormsecurity.com: https://packetstormsecurity.com/files/142384 cxsecurity.com: https://cxsecurity.com/issue/WLB-2017050019 exchange.xforce.ibmcloud.com: https://exchange.xforce.ibmcloud.com/vulnerabilities/125644 vulncheck.com: https://www.vulncheck.com/advisories/serviio-pro-local-privilege-escalation-via-unquoted-path
Credits
LiquidWorm as Gjoko Krstic of Zero Science Lab