RCE in Totolink A3300r
CVE-2026-5176
A security flaw has been discovered in Totolink A3300R 17.0.0cu.557_b20221024. Affected is the function setSyslogCfg of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument provided results in command injection. The att…
EPSS: 0.022 (84.7th 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 A3300r — versions 17.0.0cu.557_b20221024
- Totolink A3300r_firmware — versions 17.0.0cu.557_b20221024
Weakness classification (CWE)
References
- VDB-354244 | Totolink A3300R cstecgi.cgi setSyslogCfg command injection (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-354244 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #779145 | Totolink A3300R 17.0.0cu.557_b20221024 Command Injection (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-5176?
- CVE-2026-5176 is a high-severity vulnerability in Totolink A3300r, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.3/10. Published 2026-03-31.
- How severe is CVE-2026-5176?
- High severity. CVSS v3 base score is 7.3 out of 10.