CVE-2026-15027

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.

Overview

State: PUBLISHED
Assigner (CNA): twcert
CVSS severity: HIGH
CVSS score: 8.6 / 10
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
Effective score: 8.6 / 10 HIGH source: CNA overview
CWE(s): CWE-78
Reserved: 2026-07-08
Published: 2026-09-23 08:18 UTC
Last updated: 2026-09-23 14:10 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/15xxx/CVE-2026-15027.json
Linked Threat: CVE-2026-15027 — Changing｜CGServiSign - OS Command Injection

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-23 09:17:07 UTC
NVD last modified: 2026-09-23 15:17:11 UTC
NVD CVSS v3.1: 8.8 / 10 HIGH source: twcert@cert.org.tw
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability subscore: 2.8 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.0217 (probability of exploitation in next 30 days)
EPSS percentile: 81.53% vs all CVEs — higher = more likely to be exploited, as of 2026-09-23

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-85168
Assigner: twcert
Published: Sep 23, 2026, 8:18:49 AM
Updated: Sep 23, 2026, 2:10:55 PM
EUVD base score (CVSS 4.0): 8.6 / 10
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
EUVD-reported EPSS: 2.1700
Vendors: CHANGING
Products: CGServiSign (1.0.23.1227)
Aliases: GHSA-q25p-jh2x-hv2j

ENISA 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.

EUVD references (2)

Affected products (1)

Vendor	Product	Versions	Platforms
Changing	CGServiSign	`1.0.23.1227` (affected)	Linux

Vendor references (2)

References embedded in the original CVE record by the assigning CNA.

https://www.twcert.org.tw/tw/cp-132-11213-28a81-1.html third-party-advisory
https://www.twcert.org.tw/en/cp-139-11214-89281-2.html third-party-advisory

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (2)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://www.twcert.org.tw/en/cp-139-11214-89281-2.html twcert@cert.org.tw
https://www.twcert.org.tw/tw/cp-132-11213-28a81-1.html twcert@cert.org.tw

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CVE-2026-15027 - Exploits & Severity - Feedly

web:feedly.com

A vulnerability was found in Changing CGServiSign 1..23.1227 . It has been classified as very critical . This affects an unknown function. This manipulation causes os command injection. The identification of this vulnerability is CVE-2026-15027 . It is possible to initiate the attack remotely. There is no exploit available.

2026-09-24 11:16 UTC
Cisco Advance Notification for Publication of September 16, 2026 ...

web:sec.cloudapps.cisco.com

On September 16, 2026 , the Cisco Product Security Incident Response Team (PSIRT) published the advisories that are listed in the following tables. To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the ...

2026-09-24 11:16 UTC
Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-09-24 11:16 UTC
Description of the security update for Office 2016: August 11, 2026 ...

web:support.microsoft.com

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home. (See What version of Office am I using?) How to get and install the update Method 1: Microsoft Update This update is available from Microsoft Update. When you turn on ...

2026-09-24 11:16 UTC
March 13, 2026—Hotpatch KB5084597 (OS Builds 26200.7982 and 26100.7982 ...

web:support.microsoft.com

This update for Windows 11, version 25H2 and 24H2 (KB5084597) incudes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates. To view the ...

2026-09-24 11:16 UTC
CVE-2026-15027 - vulnerability database | Vulners.com

web:vulners.com

CVE-2026-15027 🗓️ 23 Sep 2026 01:18:49 Reported by twcert Type cve 🔗 web.nvd.nist.gov 👁 9 Views

2026-09-24 11:16 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-24 11:16 UTC
Oracle Critical Security Patch Update Advisory - June 2026

web:www.oracle.com

Additional CVEs addressed are: The patch for CVE - 2026 -34481 also addresses CVE - 2026 -34477, CVE - 2026 -34478, CVE - 2026 -34479, and CVE - 2026 -34480. Oracle Fusion Middleware Risk Matrix This Critical Security Patch Update contains 106 new security patches for Oracle Fusion Middleware. 53 of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a ...

2026-09-24 11:16 UTC
CVE-2026-15027: Changing CGServiSign: CGServiSign developed by ... - Rapid7

web:www.rapid7.com

CVE-2026-15027 : Changing CGServiSign: CGServiSign developed by Changing has a OS Command Injection vulnerability. View severity, references, and remediation details from Rapid7.

2026-09-24 11:16 UTC
Patch Tuesday September 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's September 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-09-24 11:16 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-15027.json.

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