CVE-2017-20218

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.

CVSS v4.0

8.5 HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.14% chance of exploitation in the next 30 days, 4th percentile

Published

2026-03-15

Updated

2026-03-16

Proof-of-concept exploits (2)

• https://www.exploit-db.com/exploits/41959/
• https://packetstormsecurity.com/files/142384

References

• CVE Record
• NVD entry

Related

• CVE-2017-20217
• CVE-2017-20219
• CVE-2017-20216
• CVE-2017-20220
• CVE-2017-20215
• CVE-2017-20221