Vulnerability Monitor

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CVE-2019-15914

An issue was discovered on Xiaomi DGNWG03LM, ZNCZ03LM, MCCGQ01LM, WSDCGQ01LM, RTCGQ01LM devices. Attackers can use the ZigBee trust center rejoin procedure to perform mutiple denial of service attacks.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 10 products from mi, from mi, from mi and 7 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2019-12-20T17:15:11.643

Last Modified

2024-11-21T04:29:43.117

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	mi	dgnwg03lm_firmware	-	Yes
Hardware	mi	dgnwg03lm	-	No
Operating System	mi	zncz03lm_firmware	-	Yes
Hardware	mi	zncz03lm	-	No
Operating System	mi	mccgq01lm_firmware	-	Yes
Hardware	mi	mccgq01lm	-	No
Operating System	mi	wsdcgq01lm_firmware	-	Yes
Hardware	mi	wsdcgq01lm	-	No
Operating System	mi	rtcgq01lm_firmware	-	Yes
Hardware	mi	rtcgq01lm	-	No

References

https://github.com/chengcheng227/CVE-POC/blob/master/CVE-2019-15914_1.md Exploit, Third Party Advisory ([email protected])
https://github.com/chengcheng227/CVE-POC/blob/master/CVE-2019-15914_2.md Exploit, Third Party Advisory ([email protected])
https://github.com/chengcheng227/CVE-POC/blob/master/CVE-2019-15914_1.md Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/chengcheng227/CVE-POC/blob/master/CVE-2019-15914_2.md Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For mi's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.