CVE-2026-1326 — MEDIUM (6.3)

Vulnerability Description

A weakness has been identified in Totolink NR1800X 9.1.0u.6279_B20210910. This vulnerability affects the function setWanCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. This manipulation of the argument Hostname causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.

CVSS Score

6.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Totolink	Nr1800X Firmware	9.1.0u.6279_b20210910
Totolink	Nr1800X	-

Related Weaknesses (CWE)

CWE-74 CWE-77

References

https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-setWanCfg-2e453a41781fExploitThird Party Advisory
https://vuldb.com/?ctiid.342302Permissions RequiredVDB Entry
https://vuldb.com/?id.342302Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.735787Third Party AdvisoryVDB Entry
https://www.totolink.net/Product

FAQ

What is CVE-2026-1326?

CVE-2026-1326 is a vulnerability with a CVSS score of 6.3 (MEDIUM). A weakness has been identified in Totolink NR1800X 9.1.0u.6279_B20210910. This vulnerability affects the function setWanCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. This...

How severe is CVE-2026-1326?

CVE-2026-1326 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-1326?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink Nr1800X Firmware, Totolink Nr1800X.