Western Digital My Cloud EX2 Ultra firmware 2.31.183 allows web users (including guest account) to remotely execute arbitrary code via a stack-based buffer overflow
Published Nov 13, 2019
8.8
HIGHCVSS 3.1
EPSS 3.21%
Description
Western Digital My Cloud EX2 Ultra firmware 2.31.183 allows web users (including guest account) to remotely execute arbitrary code via a stack-based buffer overflow. There is no size verification logic in one of functions in libscheddl.so, and download_mgr.cgi makes it possible to enter large-sized f_idx inputs.
Affected products
No data.
- 2.31.183
Running on/with
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:S/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 3.21% (0.03209) | 87.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.21% (0.03209) | 86.48th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.00% (0.01000) | 74.97th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.34% (0.02345) | 74.82th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.97% (0.00967) | 75.01th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00085) | 38.08th | v3 (v2023.03.01) |
| Jun 10, 2024 | 0.08% (0.00085) | 36.37th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00085) | 34.37th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.44% (0.01440) | 73.47th | v2 (v2022.01.01) |
| Feb 28, 2023 | 1.44% (0.01440) | 73.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.44% (0.01440) | 71.44th | v2 (v2022.01.01) |
| Feb 4, 2022 | 30.44% (0.30439) | 96.32th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.01% (0.05015) | 78.60th | v1 |
| Jan 6, 2022 | 5.01% (0.05015) | 78.38th | v1 |
| Sep 1, 2021 | 1.16% (0.01163) | 67.05th | v1 |
| Apr 14, 2021 | 1.16% (0.01163) | 0.00th | v1 |
References (2)
- https://github.com/DelspoN/CVE/blob/master/CVE-2019-18930/description.txt x_refsource_MISCThird Party Advisory
- https://github.com/DelspoN/CVE/tree/master/CVE-2019-18930 x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/DelspoN/CVE/blob/master/CVE-2019-18930/description.txt | x_refsource_MISCThird Party Advisory | |
| https://github.com/DelspoN/CVE/tree/master/CVE-2019-18930 | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.