CVE-2026-1623
Totolink A7000R cstecgi.cgi setUpgradeFW command injection
- State
- Published
- Severity
- 5.3 Medium
- Published
- Jan 29, 2026
- Updated
- Feb 23, 2026
- Reserved
- Jan 29, 2026
Description
A weakness has been identified in Totolink A7000R 4.1cu.4154. Impacted is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument FileName 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 |
|---|---|
A7000RTotolink |
|
References
- VDB-343382 | Totolink A7000R cstecgi.cgi setUpgradeFW command injectionvdb-entrytechnical-description
- VDB-343382 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #740767 | TOTOLINK A7000R V4.1cu.4154 Command Injectionthird-party-advisory
- https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_RCE.mdexploitpatch
- https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A7000R/04_RCE_setUpgradeFW_RCE.md#pocexploitpatch
- https://www.totolink.net/product
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