RCE in Totolink Wa300
CVE-2026-7720
A weakness has been identified in Totolink WA300 5.2cu.7112_B20190227. The impacted element is the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. This manipulation of the argument langType c…
EPSS: 0.048 (89.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Totolink Wa300 — versions 5.2cu.7112_B20190227
Weakness classification (CWE)
References
- VDB-360896 | Totolink WA300 POST Request cstecgi.cgi setLanguageCfg command injection (technical-description, vdb-entry)
- VDB-360896 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
- Submit #807198 | Totolink WA300 WA300 V5.2cu.7112_B20190227 Command Injection (third-party-advisory)
- cna@vuldb.com (exploit)
- cna@vuldb.com (product)
Frequently asked questions
- What is CVE-2026-7720?
- CVE-2026-7720 is a medium-severity vulnerability in Totolink Wa300, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-05-04.
- How severe is CVE-2026-7720?
- Medium severity. CVSS v3 base score is 6.3 out of 10.