CVE-2026-9436
Totolink A8000RU Web Management cstecgi.cgi setL2tpServerCfg os command injection
- State
- Published
- Severity
- 9.3 Critical
- Published
- May 25, 2026
- Updated
- May 28, 2026
- Reserved
- May 24, 2026
Description
A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setL2tpServerCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Executing a manipulation of the argument enable can lead to os command injection. The attack can be executed remotely. The exploit has been published and may be used.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 9.8 Critical | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 10.0 High | AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
A8000RUTotolink |
|
References
- VDB-365417 | Totolink A8000RU Web Management cstecgi.cgi setL2tpServerCfg os command injectionvdb-entrytechnical-description
- VDB-365417 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #813909 | Totolink A8000RU 7.1cu.643_b20200521 Command Injectionthird-party-advisory
- Submit #813461 | Totolink A8000RU 7.1cu.643_b20200521 Command Injection (Duplicate)third-party-advisory
- https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_357/README.mdexploit
- https://www.totolink.net/product
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