CVE-2026-1327: Totolink NR1800X POST Request cstecgi.cgi setTracerouteCfg command injection

Published Jan 22, 2026
·
Updated

A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279B20210910. This issue affects the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Such manipulation of the argument command leads to command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.

Affected Software

3 affected components
TOTOLINK NR1800X
All of the following
TOTOLINK Nr1800x Firmware=9.1.0u.6279_b20210910
TOTOLINK NR1800X

Event History

Jan 22, 2026
CVE Published
via MITRE·02:02 PM
Data Sourced
via MITRE·02:02 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·03:16 PM
DescriptionSeverityWeaknessAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2026-1327?

CVE-2026-1327 has been rated as a high severity vulnerability.

2

How do I fix CVE-2026-1327?

To fix CVE-2026-1327, update the Totolink NR1800X firmware to the latest version available from the manufacturer.

3

What does CVE-2026-1327 affect?

CVE-2026-1327 affects the setTracerouteCfg function in the /cgi-bin/cstecgi.cgi file of the Totolink NR1800X router.

4

What type of vulnerability is CVE-2026-1327?

CVE-2026-1327 is classified as a command injection vulnerability.

5

Is CVE-2026-1327 exploitable remotely?

Yes, CVE-2026-1327 can be exploited remotely without authentication.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203