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Vulnerability record · CVE-2021-21735 · published 10 June 2021

CVE-2021-21735: Zte zxhn h168n firmware vulnerability

Zte · Zxhn H168n Firmware

A ZTE product has an information leak vulnerability. Due to improper permission settings, an attacker with ordinary user permissions could exploit this vulnerability to obtain some sensitive user information through the wizard page without authentication. This affects ZXHN H168N all versions up to V3.5.0_EG1T4_TE.

6.5 CVSS 3.1 Medium EPSS 0.93% · top 41.0% CWE-281 · CWE-281
6.5CVSS 3.1 base score, v2 4.0
0.93%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

A ZTE product has an information leak vulnerability. Due to improper permission settings, an attacker with ordinary user permissions could exploit this vulnerability to obtain some sensitive user information through the wizard page without authentication. This affects ZXHN H168N all versions up to V3.5.0_EG1T4_TE.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1015924 Vendor Advisory
http://seclists.org/fulldisclosure/2026/May/21
https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1015924 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-21730Zte zxhn h168n firmware vulnerabilityA ZTE product is impacted by improper access control vulnerability. The attacker could exploit this vulnerability to access CLI by brute force attack…EPSS 1.0%8.8CVE-2018-7357ZTE ZXHN H168N router missing authentication for critical functionZTE ZXHN H168N firmware versions V2.2.0_PK1.2T5, V2.2.0_PK1.2T2, V2.2.0_PK11T7 and V2.2.0_PK11T expose a critical function without authentication (CW…EPSS 88%analysed8.8CVE-2018-7358ZTE ZXHN H168N router improper authentication allows unauthorized operationsZTE ZXHN H168N firmware versions V2.2.0_PK1.2T5, V2.2.0_PK1.2T2, V2.2.0_PK11T7 and V2.2.0_PK11T contain an improper change control flaw mapped to CWE…EPSS 90%analysed6.5CVE-2021-21729Zte zxhn h168n firmware cross-site request forgery vulnerabilitySome ZTE products have CSRF vulnerability. Because some pages lack CSRF random value verification, attackers could perform illegal authorization oper…EPSS 0.38%9.8CVE-2017-8543Windows Search memory handling flaw allows remote code executionWindows Search fails to properly handle objects in memory, allowing an unauthenticated remote attacker to execute code on affected Windows systems. T…KEVEPSS 74%analysed

Source: NIST National Vulnerability Database (record CVE-2021-21735), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.