CVE-2021-21722

4.4 MEDIUM 0.4% exploit odds Fix listed

What it is

A ZTE Smart STB is impacted by an information leak vulnerability. The device did not fully verify the log, so attackers could use this vulnerability to obtain sensitive user information for further information detection and attacks. This affects: ZXV10 B860A V2.1-T_V0032.1.1.04_jiangsuTelecom.

At a glance

Exploitability: Can be exploited locally on the machine with an admin-level account. High risk of data exposure.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2021-01-14 16:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:36 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.4% in the next 30 days (EPSS).
Severity: 4.4 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2021-01-14 16:15 UTC
Last modified: 2026-06-17 03:36 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-532 · Secrets in logs
Record status: Modified

Affected

Zte zxv10 b860a Firmware v2.1-t_v0032.1.1.04_jiangsutelecom

Attack profile CVSS 3.1 · 4.4

Attack vector: Local
Complexity: Low
Privileges needed: High
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-21722.md and follow it. Check whether this project is affected by CVE-2021-21722. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record