CVE-2026-1326
Totolink NR1800X POST Request cstecgi.cgi setWanCfg command injection
- State
- Published
- Severity
- 5.3 Medium
- Published
- Jan 22, 2026
- Updated
- Feb 23, 2026
- Reserved
- Jan 22, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 6.5 Medium | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
NR1800XTotolink |
|
References
- VDB-342302 | Totolink NR1800X POST Request cstecgi.cgi setWanCfg command injectionvdb-entrytechnical-description
- VDB-342302 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #735787 | TOTOLINK NR1800X NR1800X_Firmware V9.1.0u.6279_B20210910 Command Injectionthird-party-advisory
- https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-setWanCfg-2e453a41781f80b390f3e1ce0d9dd5b9?source=copy_linkexploit
- https://www.totolink.net/product
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