CVE-2023-22815Network attack vector

Root command execution via vulnerable CGI files

Published Jun 30, 2023 · Updated Nov 6, 2024

OS command injection in Western Digital OS 5 NAS firmware before 5.26.300 allows remote authenticated users to execute commands as root. The affected CGI files fail to neutralize attacker-controlled command elements, but the vendor has not identified the files or parameters. Administrative or root credentials, network reachability, and a separate authentication bypass are required for root-level execution.

CVSS severity6.2
Medium
EPSS probability1.31%
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 Western Digital OS 5 NAS firmware before 5.26.300 allows remote authenticated users to execute commands as root. The affected CGI files fail to neutralize attacker-controlled command elements, but the vendor has not identified the files or parameters. Administrative or root credentials, network reachability, and a separate authentication bypass are required for root-level execution.

The record

CVE
CVE-2023-22815
Published
Jun 30, 2023
Updated
Nov 6, 2024
Vendor
Western Digital Corporation
Product
My Cloud OS 5
Classifications
CWE-78, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 6, 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 <5.26.300

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Western Digital Corporation · My Cloud OS 5version=0 <5.26.300

Published CVSS scores

6.2Western DigitalCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/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
Privilegesadmin
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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