CVE-2025-30247Network attack vector

Unauthenticated command execution via crafted HTTP POST

Published Sep 29, 2025 · Updated Sep 29, 2025

OS command injection in WD MyCloud firmware before 5.31.108 allows remote attackers to run system commands through a crafted HTTP POST. The user interface fails to neutralize command syntax in POST data before constructing an operating-system command, but the affected endpoint and function are undisclosed. No authentication or user interaction is required; network access to the device interface is sufficient for arbitrary command execution on the NAS.

CVSS severity9.3
Critical
EPSS probability1.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in WD MyCloud firmware before 5.31.108 allows remote attackers to run system commands through a crafted HTTP POST. The user interface fails to neutralize command syntax in POST data before constructing an operating-system command, but the affected endpoint and function are undisclosed. No authentication or user interaction is required; network access to the device interface is sufficient for arbitrary command execution on the NAS.

The record

CVE
CVE-2025-30247
Published
Sep 29, 2025
Updated
Sep 29, 2025
Vendor
Western Digital Corporation
Product
My Cloud
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <5.31.108

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Western Digital Corporation · My Cloudversion=0 <5.31.108

Published CVSS scores

9.3Western DigitalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

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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