CVE-2026-30140Network attack vector

Administrator credential disclosure via unauthenticated configuration download

Published Mar 9, 2026 · Updated Mar 9, 2026

Improper access control in Tenda W15E 02.03.01.26_cn allows remote attackers to obtain administrator credentials over the network. The DownloadCfg/RouterCfm.jpg CGI endpoint returns a downloadable router configuration without authentication, and that file stores the administrator credentials in plaintext. No login or user interaction is required to read the credentials; administrative access requires their subsequent use against the device.

CVSS severity7.5
High
EPSS probability0.33%
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 Tenda W15E 02.03.01.26_cn allows remote attackers to obtain administrator credentials over the network. The DownloadCfg/RouterCfm.jpg CGI endpoint returns a downloadable router configuration without authentication, and that file stores the administrator credentials in plaintext. No login or user interaction is required to read the credentials; administrative access requires their subsequent use against the device.

The record

CVE
CVE-2026-30140
Published
Mar 9, 2026
Updated
Mar 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 9, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A: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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1552.001Unsecured Credentials: Credentials In Files

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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