CVE-2025-25428

Root login via hard-coded shadow password

Published Feb 28, 2025 · Updated Mar 4, 2025

Hard-coded credentials in TRENDnet TEW-929DRU firmware 1.0.0.10 allow adjacent authenticated users to log in as root. The report states that the firmware stores a reusable root password in /etc/shadow, enabling credential-based operating-system access. TRENDnet disputes applicability, stating that exploitation requires a management login and that each device has a unique password.

CVSS severity8.0
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded credentials in TRENDnet TEW-929DRU firmware 1.0.0.10 allow adjacent authenticated users to log in as root. The report states that the firmware stores a reusable root password in /etc/shadow, enabling credential-based operating-system access. TRENDnet disputes applicability, stating that exploitation requires a management login and that each device has a unique password.

The record

CVE
CVE-2025-25428
Published
Feb 28, 2025
Updated
Mar 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-259, T1078
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 4, 2025Record 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 vectoradjacent
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.0CISA-ADPCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-259Use of Hard-coded Password
T1078Valid Accounts

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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