Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to…
Priority MEDIUM 48CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to carry out escalation of privileges through unauthorized remote code execution in Western Digital My Cloud devices before 5.04.114.
Why it matters now
EPSS 0.03327 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:westerndigital:my_cloud_firmware:*:*:*:*:*:*:*:* | before 5.04.114 | Vulnerable | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud_ex4100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud_expert_series_ex2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud_mirror_-_gen_2:-:*:*:*:*:*:*:* | 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_firmware:*:*:*:*:*:*:*:* Versions before 5.04.114 Vulnerable ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud_ex4100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud_expert_series_ex2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud_mirror_-_gen_2:-:*:*:*:*:*:*:* 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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12830
- 2026-10-03 Alias added: GHSA-hmww-h9vv-9rgj
References
More Westerndigital My Cloud Firmware vulnerabilities
- TI-2020-16509 Addressed remote code execution vulnerability in cgi_api.php that allowed escalation of… CVSS 3.1CRITICAL 9.8
- TI-2020-16829 An issue was discovered on Western Digital My Cloud NAS devices before 5.04.114. CVSS 3.1CRITICAL 9.8
- TI-2020-16510 Addressed remote code execution vulnerability in DsdkProxy.php due to insufficient… CVSS 3.1CRITICAL 9.8
- TI-2020-15773 Addressed remote code execution vulnerability in reg_device.php due to insufficient… CVSS 3.1CRITICAL 9.8
- TI-2022-16678 Impersonation attack causing an Authentication Bypass on Western Digital devices CVSS 3.1CRITICAL 10.0
- TI-2020-16511 Addressed remote code execution vulnerability in AvailableApps.php that allowed… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-12830 · CVE Program
- CVE-2020-12830 · NVD
- FIRST EPSS
- GHSA-hmww-h9vv-9rgj · 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