RCE in Totolink A7100ru
CVE-2026-6115
A flaw has been found in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function setAppCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument enable can lead to os command injection. The attack may be launched remotely. The exploit has been published and may be used.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.033 (87.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.033 · change: +0.014
Affected products
- Totolink A7100ru — versions 7.4cu.2313_b20191024
Weakness classification (CWE)
References
- vuldb.com/vuln/356975 (technical-description, vdb-entry)
- vuldb.com/vuln/356975/cti (signature, permissions-required)
- vuldb.com/submit/792248 (third-party-advisory)
- github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_180/README.md (exploit)
- www.totolink.net/ (product)
Frequently asked questions
- What is CVE-2026-6115?
- CVE-2026-6115 is a critical-severity vulnerability in Totolink A7100ru, classified under Command Injection. CVSS score: 9.8/10. Published 2026-04-12.
- How severe is CVE-2026-6115?
- Critical severity. CVSS v3 base score is 9.8 out of 10.