CVE-2024-34539Public exploitNetwork attack vector

Administrative access via embedded shared credentials

Published Jun 14, 2024 · Updated Aug 2, 2024

Hard-coded credentials in TerraMaster TOS 5.1 and earlier allow remote attackers to access mail and administration services. The firmware embeds the fixed [email protected] account and pm0607 password, and the mail, webmail, and administration login paths accept that shared credential pair. No prior authentication or user interaction is required; successful login grants administrative access and permits privileged actions on the NAS.

CVSS severity9.4
Critical
EPSS probability0.52%
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 TerraMaster TOS 5.1 and earlier allow remote attackers to access mail and administration services. The firmware embeds the fixed [email protected] account and pm0607 password, and the mail, webmail, and administration login paths accept that shared credential pair. No prior authentication or user interaction is required; successful login grants administrative access and permits privileged actions on the NAS.

The record

CVE
CVE-2024-34539
Published
Jun 14, 2024
Updated
Aug 2, 2024
Vendor
TerraMaster
Product
TOS
Classifications
CWE-259, T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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 <=5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TerraMaster · TOSversion=0 <=5.1

Published CVSS scores

9.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-259Use of Hard-coded Password
T1078.001Valid Accounts: Default 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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