CVE-2022-23000

Traffic interception via weak port-forwarding SSL context

Published Jul 25, 2022 · Updated Aug 3, 2024

Algorithm downgrade in Western Digital My Cloud OS 5 before 5.23.114 allows local users to read or alter port-forwarding traffic. The My Cloud Web App's port-forwarding path creates an SSL context that permits deprecated or insecure protocols instead of enforcing TLS. Exploitation requires local access but no privileges or user interaction, and its reported effects are limited to information transmitted through that connection.

CVSS severity7.8
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Algorithm downgrade in Western Digital My Cloud OS 5 before 5.23.114 allows local users to read or alter port-forwarding traffic. The My Cloud Web App's port-forwarding path creates an SSL context that permits deprecated or insecure protocols instead of enforcing TLS. Exploitation requires local access but no privileges or user interaction, and its reported effects are limited to information transmitted through that connection.

The record

CVE
CVE-2022-23000
Published
Jul 25, 2022
Updated
Aug 3, 2024
Vendor
Western Digital Corporation
Product
My Cloud
Classifications
CWE-757, T1557
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 25, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=My Cloud OS 5 <5.23.114

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Western Digital Corporation · My Cloudversion=My Cloud OS 5 <5.23.114

Published CVSS scores

7.3Western DigitalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
7.8NIST NVDCVSS:3.1/AV:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-757Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')
T1557Adversary-in-the-Middle

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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