Description
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.
Published: 2026-09-23
Score: 8.6 High
EPSS: 2.2% Low
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Impact

OS Command Injection allows unauthenticated remote attackers to cause a vulnerable local service interface to execute arbitrary commands by visiting a malicious web page. The consequence is execution of arbitrary OS commands on the victim’s system, compromising confidentiality, integrity, and availability. This flaw corresponds to CWE-78.

Affected Systems

The affected product is Changing’s CGServiSign. Versions prior to NHIServisign 1.0.26.0625 on Linux are vulnerable. No other versions are mentioned in the advisory.

Risk and Exploitability

The CVSS score of 8.6 indicates high severity, and an EPSS score of 2% indicates a low but non-zero exploitation probability, while the lack of KEV inclusion suggests no known large-scale exploitation yet. The vulnerability is exploitable by anyone who can lure a user to a crafted web page that interacts with the local service interface, thus making it reachable over the network. The risk to systems where CGServiSign is installed is significant, as full system compromise is possible if no mitigations are applied.

Generated by OpenCVE AI on September 23, 2026 at 15:05 UTC.

Remediation

Vendor Solution

Update Linux's NHIServisign version 1.0.26.0625 or later.

OpenCVE Recommended Actions

  • Upgrade to NHIServisign 1.0.26.0625 or later.
  • Restrict or disable the local service interface on hosts that do not require it.
  • Avoid clicking on untrusted URLs and educate users to not visit unknown web pages that may try to exploit the service.

Generated by OpenCVE AI on September 23, 2026 at 15:05 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Wed, 23 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Wed, 23 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Changing｜CGServiSign - OS Command Injection
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.6, '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'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: twcert

Published:

Updated: 2026-09-23T14:10:55.442Z

Reserved: 2026-07-08T01:35:23.369Z

Link: CVE-2026-15027

cve-icon Vulnrichment

Updated: 2026-09-23T14:10:52.423Z

cve-icon NVD

Status : Received

Published: 2026-09-23T09:17:07.657

Modified: 2026-09-23T15:17:11.253

Link: CVE-2026-15027

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-23T15:15:05Z

Weaknesses
  • CWE-78

    Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')