Some ZTE products have CSRF vulnerability.

published 2021-04-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-8901

cvss: 6.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits: 0; none known

Some ZTE products have CSRF vulnerability. Because some pages lack CSRF random value verification, attackers could perform illegal authorization operations by constructing messages.This affects: ZXHN H168N V3.5.0_EG1T5_TE, V2.5.5, ZXHN H108N V2.5.5_BTMT1

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

n/a ZXHN H168N,ZXHN H108N

Classification

Weakness

CWE-330 Use of Insufficiently Random Values
CWE-352 Cross-Site Request Forgery

References

support.zte.com.cn /support/news/LoopholeInfoDetail.aspx?newsId=1014904
vendor-advisory

Sources

CVE List CVE-2021-21729
NVD CVE-2021-21729

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Summary