Vulnerability identifier: #VU51383

Vulnerability risk: Low

CVSSv3.1: 4.2 [CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21725

CWE-ID: CWE-200

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
ZXHN H196Q
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: ZTE

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. A remote authenticated attacker on the local network can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ZXHN H196Q: 9.1.0C2

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External links
http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014624

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.