RCE in Totolink A7100ru
CVE-2026-5678
A weakness has been identified in Totolink A7100RU 7.4cu.2313_b20191024. The affected element is the function setScheduleCfg of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument mode can lead to os command injection. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.021 (80.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.021 · change: +0.008
Affected products
- Totolink A7100ru — versions 7.4cu.2313_b20191024
Weakness classification (CWE)
References
- vuldb.com/vuln/355505 (technical-description, vdb-entry)
- vuldb.com/vuln/355505/cti (signature, permissions-required)
- vuldb.com/submit/792608 (third-party-advisory)
- github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_185/README.md (exploit)
- www.totolink.net/ (product)
Frequently asked questions
- What is CVE-2026-5678?
- CVE-2026-5678 is a high-severity vulnerability in Totolink A7100ru, classified under Command Injection. CVSS score: 7.3/10. Published 2026-04-06.
- How severe is CVE-2026-5678?
- High severity. CVSS v3 base score is 7.3 out of 10.