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Vulnerability record · CVE-2021-45986 · published 4 February 2022

CVE-2021-45986: Tendacn g1 firmware os command injection vulnerability

Tendacn · G1 Firmware

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command injection vulnerability in the function formSetUSBShareInfo. This vulnerability allows attackers to execute arbitrary commands via the usbOrdinaryUserName parameter.

9.8 CVSS 3.1 Critical EPSS 1.9% · top 21.5% CWE-78 · OS command injection
9.8CVSS 3.1 base score, v2 7.5
1.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command injection vulnerability in the function formSetUSBShareInfo. This vulnerability allows attackers to execute arbitrary commands via the usbOrdinaryUserName parameter.

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

Affected products

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

References

LinkTags
https://github.com/pjqwudi/my_vuln/blob/main/Tenda/vuln_2/2.md Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/218962 Third Party Advisory
https://github.com/pjqwudi/my_vuln/blob/main/Tenda/vuln_2/2.md Broken Link

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2021-45986), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.