Western Digital My Cloud EX2 Ultra firmware 2.31.195 allows a Buffer Overflow with…
Priority MEDIUM 42CWE-120Published · 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
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
Western Digital My Cloud EX2 Ultra firmware 2.31.195 allows a Buffer Overflow with Extended Instruction Pointer (EIP) control via crafted GET/POST parameters.
Why it matters now
EPSS 0.02203 82nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:western_digital:my_cloud_ex2_ultra_firmware:2.31.195:*:*:*:*:*:*:* | 2.31.195 | Vulnerable | Western Digital |
| cpe:2.3:h:western_digital:my_cloud_ex2_ultra:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Western Digital |
- cpe:2.3:o:western_digital:my_cloud_ex2_ultra_firmware:2.31.195:*:*:*:*:*:*:* Versions 2.31.195 Vulnerable ·Western Digital
- cpe:2.3:h:western_digital:my_cloud_ex2_ultra:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Western Digital
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-18931
- 2026-10-03 Alias added: GHSA-3f5p-w7xp-rch2
References
More Western Digital My Cloud Ex2 Ultra Firmware vulnerabilities
- 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-2019-07320 Western Digital My Cloud, My Cloud Mirror Gen2, My Cloud EX2 Ultra, My Cloud EX2100, My… CVSS 3.0CRITICAL 9.8
- TI-2019-13646 Western Digital My Cloud EX2 Ultra firmware 2.31.183 allows web users (including guest… CVSS 3.1HIGH 8.8
- TI-2019-13645 Western Digital My Cloud EX2 Ultra firmware 2.31.183 allows web users (including guest… CVSS 3.1HIGH 8.8
Sources
- CVE-2019-18931 · CVE Program
- CVE-2019-18931 · NVD
- FIRST EPSS
- GHSA-3f5p-w7xp-rch2 · 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