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Vulnerability record · CVE-2022-25137 · published 19 February 2022

CVE-2022-25137: Totolink t6 firmware command injection vulnerability

TTotolink · T6 Firmware

A command injection vulnerability in the function recvSlaveUpgstatus of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 and T10 V2_Firmware V4.1.8cu.5207_B20210320 allows attackers to execute arbitrary commands via a crafted MQTT packet.

9.8 CVSS 3.1 Critical EPSS 2.2% · top 18.2% CWE-77 · Command injection
9.8CVSS 3.1 base score, v2 7.5
2.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

A command injection vulnerability in the function recvSlaveUpgstatus of TOTOLINK Technology routers T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 and T10 V2_Firmware V4.1.8cu.5207_B20210320 allows attackers to execute arbitrary commands via a crafted MQTT packet.

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/pjqwudi1/my_vuln/blob/main/totolink/vuln_15/15.md Broken LinkThird Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/220077 Third Party AdvisoryVDB Entry
https://github.com/pjqwudi1/my_vuln/blob/main/totolink/vuln_15/15.md Broken LinkThird Party Advisory

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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-2022-25137), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.