CVE-2026-15027 PUBLISHED

Changing｜CGServiSign - OS Command Injection

Assigner: twcert
Reserved: 08.07.2026 Published: 23.09.2026 Updated: 23.09.2026

CGServiSign developed by Changing has a OS Command Injection vulnerability. Unauthenticated remote attackers can induce victims to visit a malicious web page and inject arbitrary OS commands through the local service interface, resulting in command execution on the victim's local computer.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	Active

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS Score: 8.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Changing
Product	CGServiSign
Versions	Default: unaffected Version 1.0.23.1227 is affected

Solutions

Update Linux's NHIServisign version 1.0.26.0625 or later.

References

Problem Types

CWE-78 Improper Neutralization of Special Elements used in an OS Command CWE