CVE-2025-57579Public exploitNetwork attack vector

Root code execution via recoverable default credential

Published Sep 12, 2025 · Updated Sep 12, 2025

Hard-coded credentials in TOTOLINK X2000R firmware 2.0.0-b20230727.1043.web allow remote attackers to gain root access and execute arbitrary code. The root password uses MD5-crypt in the world-readable /etc/shadow.sample file, enabling recovery of the default credential. Network access to an administrative interface or another login service is required; successful login grants full device control.

CVSS severity8.0
High
EPSS probability0.59%
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 TOTOLINK X2000R firmware 2.0.0-b20230727.1043.web allow remote attackers to gain root access and execute arbitrary code. The root password uses MD5-crypt in the world-readable /etc/shadow.sample file, enabling recovery of the default credential. Network access to an administrative interface or another login service is required; successful login grants full device control.

The record

CVE
CVE-2025-57579
Published
Sep 12, 2025
Updated
Sep 12, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-798, T1078.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 12, 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 vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.0CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1078.001Default Accounts

Public exploit references

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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