CVE-2026-75168Network attack vector

Arbitrary configuration file write via insufficient authorization

Published Sep 4, 2026 · Updated Sep 4, 2026

Improper access control in MBS-Solutions X-Serie Gateway firmware 6_00_05 allows remote authenticated users to write configuration files. The ugw-editfile method in /cgi-bin/wwwugw.cgi accepts Standard-role requests that write arbitrary content beneath /uxx/config/ and /ugw/config/. A low-privileged Standard account and network access to the integrated web interface are required, enabling unauthorized modification of persistent gateway configuration.

CVSS severity6.3
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in MBS-Solutions X-Serie Gateway firmware 6_00_05 allows remote authenticated users to write configuration files. The ugw-editfile method in /cgi-bin/wwwugw.cgi accepts Standard-role requests that write arbitrary content beneath /uxx/config/ and /ugw/config/. A low-privileged Standard account and network access to the integrated web interface are required, enabling unauthorized modification of persistent gateway configuration.

The record

CVE
CVE-2026-75168
Published
Sep 4, 2026
Updated
Sep 4, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, T1565.001
Attack vector
network
Privileges
authenticated

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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.3CISACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1565.001Stored Data Manipulation

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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