Limited Post-Authentication Remote Command Injection in My Cloud Products
Priority MEDIUM 42CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.
Summary
A post-authentication remote command injection vulnerability in a CGI file in Western Digital My Cloud OS 5 devices that could allow an attacker to build files with redirects and execute larger payloads. This issue affects My Cloud OS 5 devices: before 5.26.300.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00866 58th percentileScored 2026-11-07
Fix Fixed My Cloud OS 5 (Western Digital): 5.26.300
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Western Digital | My Cloud OS 5 | before 5.26.300 | 5.26.300 | Patch available | CNA |
- My Cloud OS 5 VendorWestern Digital Affected before 5.26.300 Fixed in 5.26.300 Patch available CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:westerndigital:my_cloud_os:*:*:*:*:*:*:*:* | before 5.26.300 | Vulnerable | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud_dl2100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud_dl4100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud_ex2_ultra:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud_ex2100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud_ex4100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud_mirror_g2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud_pr2100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud_pr4100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
- cpe:2.3:o:westerndigital:my_cloud_os:*:*:*:*:*:*:*:* Versions before 5.26.300 Vulnerable ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud_dl2100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud_dl4100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud_ex2_ultra:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud_ex2100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud_ex4100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud_mirror_g2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud_pr2100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud_pr4100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
Show 1 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:westerndigital:wd_cloud:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
- cpe:2.3:h:westerndigital:wd_cloud:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
Remediation
- Fix · CNA My Cloud OS 5 (Western Digital) Fixed in 5.26.300
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Western Digital My Cloud OS 5 5.26.300
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2023-08982 Post-authentication remote command injection vulnerability on Western Digital My Cloud OS 5 devicesPriority LOW 32
Timeline
- 2026-10-02 Threatist record created from CVE-2023-22816
- 2026-10-03 Alias added: GHSA-5fx6-86fq-8xxf
References
More Western Digital vulnerabilities
- TI-2016-08187 Unauthenticated Remote Command injection as root occurs in the Western Digital MyCloud… CVSS 3.0CRITICAL 9.8
- TI-2018-12259 It was discovered that the Western Digital My Cloud device before 2.30.196 is affected by… CVSS 3.0CRITICAL 9.8
- TI-2022-12204 Western Digital My Cloud OS 5 arbitrary file read and write vulnerability via ftp CVSS 3.1CRITICAL 9.8
- TI-2016-08186 Unauthenticated Remote Command injection as root occurs in the Western Digital MyCloud… CVSS 3.0CRITICAL 9.8
- TI-2018-01067 Memory corruption in Western Digital TV Media Player CVSS 3.0CRITICAL 9.8
- TI-2022-12202 Command Injection Vulnerability in Western Digital My Cloud devices CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-22816 · CVE Program
- CVE-2023-22816 · NVD
- FIRST EPSS
- GHSA-5fx6-86fq-8xxf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences