Critical 9.8Published Apr 12, 2026

CVE-2026-6131Totolink A7100RU CGI cstecgi.cgi setTracerouteCfg os command injection

Updated under an hour ago (Oct 27, 2026, 11:40 AM ET)

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Every CVE for Totolink A7100RU

Exploited in the last 30 days

A vulnerability was found in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this vulnerability is the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument command results in os command injection. The attack may be launched remotely. The exploit has been made public and could be used.

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE): CWE-78, CWE-77
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Apr 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Totolink A7100RU totolink:a7100ru_firmware	7.4cu.2313_b20191024	CNA record

References

References

https://vuldb.com/vuln/356995	vdb-entry, technical-description
https://vuldb.com/vuln/356995/cti	signature, permissions-required
https://vuldb.com/submit/792251	third-party-advisory
https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_182/README.md	exploit
https://www.totolink.net/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.