RCE in Totolink Wa300
CVE-2026-4497
A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. Affected by this issue is the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi. This manipulation causes os command injection. Remote exploitation of the atta…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.008 (73.8th percentile) — read the EPSS interpretation.
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.
Affected products
- Totolink Wa300 — versions 5.2cu.7112_B20190227
- Totolink Wa300_firmware — versions 5.2cu.7112_b20190227
Weakness classification (CWE)
References
- VDB-352046 | Totolink WA300 cstecgi.cgi recvUpgradeNewFw os command injection (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-352046 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #773875 | Totolink WA300 V5.2cu.7112_B20190227 OS Command Injection (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (issue-tracking, Exploit, Issue Tracking)
- cna@vuldb.com (Exploit, exploit, patch)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-4497?
- CVE-2026-4497 is a high-severity vulnerability in Totolink Wa300, classified under Command Injection. CVSS score: 7.3/10. Published 2026-03-20.
- How severe is CVE-2026-4497?
- High severity. CVSS v3 base score is 7.3 out of 10.