Critical (9.8) in xinuos openserver. EPSS 39% chance of exploitation in the next 30 days.
Xinuos (formerly SCO) Openserver v5 and v6 allows attackers to execute arbitrary commands via shell metacharacters in outputform or toclevels parameter to cgi-bin/printbook.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
39% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)