High 7.3Published Apr 6, 2026

CVE-2026-5688Totolink A7100RU cstecgi.cgi setDdnsCfg os command injection

Updated under an hour ago (Oct 26, 2026, 11:00 AM ET)

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Every CVE for Totolink A7100RU

Exploited in the last 30 days

A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. Impacted is the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument provider leads to os command injection. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.

CVSS: 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/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 8, 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

https://vuldb.com/vuln/355515vdb-entry, technical-description
https://vuldb.com/vuln/355515/ctisignature, permissions-required
https://vuldb.com/submit/792945third-party-advisory
https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_186/README.mdexploit
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.