CVE-2021-21737

Name: CVE-2021-21737
Creator: NVD / NIST
Published: 2021-06-24T11:15:07.833+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.78%

Last modified Jun 17, 2026

CVE-2021-21737 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A smart STB product of ZTE is impacted by a permission and access control vulnerability. Due to insufficient protection of system application, attackers could use this vulnerability to tamper with the system desktop and affect system customization functions. EPSS estimates a 0.78% chance of exploitation in the next 30 days.

Description

A smart STB product of ZTE is impacted by a permission and access control vulnerability. Due to insufficient protection of system application, attackers could use this vulnerability to tamper with the system desktop and affect system customization functions. This affects: ZXV10 B860H V5.0, V83011303.0010, V83011303.0016

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.78%

51.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-276

Affected Software

Vendor	Product	Versions
Zte	Zxv10 B860h V5.0 Firmware	v83011303.0010
Zte	Zxv10 B860h V5.0 Firmware	v83011303.0016

References

https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1016004Vendor Advisory
https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1016004Vendor Advisory

Timeline

Published: Jun 24, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21737?

How severe is CVE-2021-21737?

CVE-2021-21737 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.78% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21737?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-21737?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST