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CVE-2019-18930 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/DelspoN/CVE/blob/master/CVE-2019-18930/description.txt	CVE	Third Party Advisory
https://github.com/DelspoN/CVE/tree/master/CVE-2019-18930	CVE	ExploitThird Party Advisory
https://github.com/DelspoN/CVE/blob/master/CVE-2019-18930/description.txt	[email protected]	Third Party Advisory
https://github.com/DelspoN/CVE/tree/master/CVE-2019-18930	[email protected]	ExploitThird Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	[email protected]

Affected Products

Product	Versions
western digital my cloud ex2 ultra firmware	2.31.183
CPE cpe:2.3:o:western_digital:my_cloud_ex2_ultra_firmware:2.31.183:::::::* Remediation No remediation found in references.
western digital my cloud ex2 ultra	All versions
CPE cpe:2.3:h:western_digital:my_cloud_ex2_ultra:-:::::::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 15, 2019	Initial Analysis	[email protected]