CVE-2022-36331Network attack vector

Unauthenticated data access via missing device token

Published Jun 12, 2023 · Updated Jan 3, 2025

Authentication bypass in Western Digital cloud-storage and ibi firmware allows remote attackers to access account data through proxy connections. The token authentication mechanism accepts a proxy connection without requiring a proper device token, allowing the connection to assume a device identity. No credentials are required, and the vendor reports access to stored account data; broader code execution requires chaining with other flaws.

CVSS severity10.0
Critical
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

Authentication bypass in Western Digital cloud-storage and ibi firmware allows remote attackers to access account data through proxy connections. The token authentication mechanism accepts a proxy connection without requiring a proper device token, allowing the connection to assume a device identity. No credentials are required, and the vendor reports access to stored account data; broader code execution requires chaining with other flaws.

The record

CVE
CVE-2022-36331
Published
Jun 12, 2023
Updated
Jan 3, 2025
Vendor
Western Digital Corporation
Product
My Cloud Home & Duo
Classifications
CWE-290, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 3, 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 <8.13.1-102

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Western Digital Corporation · My Cloud Home & Duoversion=0 <8.13.1-102
Western Digital Corporation · My Cloud OS 5version=0 <5.25.132
SanDisk · ibi Smart Photo Managerversion=0 <8.13.1-102

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
10.0Western Digital PSIRTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1190Exploit Public-Facing Application

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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