RCE in Totolink Nr1800x
CVE-2026-1327
A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279_B20210910. This issue affects the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Such manipulation of the argumen…
EPSS: 0.005 (64.8th 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 Nr1800x — versions 9.1.0u.6279_B20210910
- Totolink Nr1800x_firmware — versions 9.1.0u.6279_b20210910
Weakness classification (CWE)
References
- VDB-342303 | Totolink NR1800X POST Request cstecgi.cgi setTracerouteCfg command injection (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-342303 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #735790 | TOTOLINK NR1800X NR1800X_Firmware V9.1.0u.6279_B20210910 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-2026-1327?
- CVE-2026-1327 is a medium-severity vulnerability in Totolink Nr1800x, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-01-22.
- How severe is CVE-2026-1327?
- Medium severity. CVSS v3 base score is 6.3 out of 10.