RCE in Totolink A7000r
CVE-2026-1547
A vulnerability was detected in Totolink A7000R 4.1cu.4154. This affects the function setUnloadUserData of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument plugin_name results in command injection. It is possible to launch t…
EPSS: 0.007 (71.8th 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 A7000r — versions 4.1cu.4154
- Totolink A7000r_firmware — versions 4.1cu.4154
Weakness classification (CWE)
References
- VDB-343231 | Totolink A7000R cstecgi.cgi setUnloadUserData command injection (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-343231 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #739713 | TOTOLINK A7000R V4.1cu.4154 Command Injection (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-1547?
- CVE-2026-1547 is a medium-severity vulnerability in Totolink A7000r, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-01-28.
- How severe is CVE-2026-1547?
- Medium severity. CVSS v3 base score is 6.3 out of 10.