CVE-2021-21731

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-04-13 · updated 2026-06-17
Weakness: CWE-352

Description

A CSRF vulnerability exists in the management page of a ZTE product.The vulnerability is caused because the management page does not fully verify whether the request comes from a trusted user. The attacker could submit a malicious request to the affected device to delete the data. This affects: ZXCLOUD iRAI All versions up to KVM-ProductV6.03.04

Affected products

ZTE ZXCLOUD iRAI: before 6.03.04 — fixed in 6.03.04

How to fix

Upgrade to a fixed version: ZTE ZXCLOUD iRAI 6.03.04. Check the vendor advisory for mitigations.

References

https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014824
https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014824

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