CVE-2026-66840Network attack vector

Unauthenticated system information disclosure via administrative port

Published Sep 4, 2026 · Updated Sep 4, 2026

Information exposure in XING Inc. CPTransME-X before 1.8.1.17 allows remote attackers to read sensitive system information. The administrative port improperly processes attacker-controlled input and returns system details beyond the authorized control sphere. No authentication or user interaction is required, and the reported impact is limited to confidentiality with no reported data modification or service interruption.

CVSS severity8.7
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in XING Inc. CPTransME-X before 1.8.1.17 allows remote attackers to read sensitive system information. The administrative port improperly processes attacker-controlled input and returns system details beyond the authorized control sphere. No authentication or user interaction is required, and the reported impact is limited to confidentiality with no reported data modification or service interruption.

The record

CVE
CVE-2026-66840
Published
Sep 4, 2026
Updated
Sep 4, 2026
Vendor
XING Inc.
Product
CPTrans-ME-X
Classifications
CWE-497, CAPEC-694, CAPEC-170, T1592
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.8.1.17

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

XING Inc. · CPTrans-ME-Xversion=0 <1.8.1.17

Published CVSS scores

7.5JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.7JPCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-497Exposure of Sensitive System Information to an Unauthorized Control Sphere
CAPEC-694System Location Discovery
CAPEC-170Web Application Fingerprinting
T1592Gather Victim Host Information

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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