CVE-2026-15701
Totolink NR1800X lighttpd formLogout.htm Form_Logout stack-based overflow
- State
- Published
- Severity
- 9.3 Critical
- Published
- Jul 14, 2026
- Updated
- Jul 15, 2026
- Reserved
- Jul 14, 2026
Description
A weakness has been identified in Totolink NR1800X 9.1.0u.6279_B20210910. Affected by this issue is the function Form_Logout of the file /formLogout.htm of the component lighttpd. This manipulation of the argument Host causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
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 |
|---|---|
NR1800XTotolink |
|
References
- VDB-378248 | Totolink NR1800X lighttpd formLogout.htm Form_Logout stack-based overflowvdb-entrytechnical-description
- VDB-378248 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-15701 | CVE Analysis and Reportthird-party-advisory
- Submit #856136 | TOTOLINK TOTOLINK NR1800X V9.1.0u.6279_B20210910 V9.1.0u.6279_B20210910 Buffer Overflowthird-party-advisory
- https://github.com/fu9-dotom/cve/issues/1exploitissue-tracking
- https://www.totolink.net/product
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