CVE-2026-7124 Details
Description
A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. Affected by this vulnerability is the function setIpv6LanCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument addrPrefixLen can lead to os command injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.
A command injection vulnerability has been identified in the Totolink A8000RU router, specifically in version 7.1cu.643_b20200521. The issue resides within the CGI handler file '/cgi-bin/cstecgi.cgi', in the 'setIpv6LanCfg' function. This vulnerability allows remote attackers to execute arbitrary operating system commands by manipulating the 'addrPrefixLen' parameter. The injected commands are executed with root privileges, potentially compromising the router and the connected network.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 27, 2026CISA-ADP
Assessed Apr 27, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Litengzheng/vuldb_new2/tree/main/A8000RU/vul_309/README.md | [email protected] | ExploitTechnical Description |
| https://vuldb.com/submit/801005 | [email protected] | Technical Description |
| https://vuldb.com/vuln/359723 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/359723/cti | [email protected] | Content Wall |
| https://www.totolink.net/ | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Totolink A8000RU | 7.1cu.643_b20200521 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 27, 2026 | New CVE Received | [email protected] |