CVE-2026-19959
Edimax EW-7478APC formWanTcpipSetup stack-based overflow
- State
- Published
- Severity
- 9.4 Critical
- Published
- Aug 16, 2026
- Updated
- Aug 18, 2026
- Reserved
- Aug 16, 2026
Description
A weakness has been identified in Edimax EW-7478APC 1.04. This affects the function formWanTcpipSetup of the file /goform/formWanTcpipSetup. This manipulation of the argument pppUserName causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.4 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P | VulDB |
| 3.1 | 9.9 Critical | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 9.9 Critical | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 9.0 High | AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
EW-7478APCEdimax |
|
References
- VDB-391136 | Edimax EW-7478APC formWanTcpipSetup stack-based overflowvdb-entrytechnical-description
- VDB-391136 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-19959 | CVE Analysis and Reportthird-party-advisory
- Submit #872873 | EDIMAX EW-7478APC EW-7478APC 1.04 Buffer Overflowthird-party-advisory
- https://lavender-bicycle-a5a.notion.site/EDIMAX-EW-7478APC-formWanTcpipSetup-34b53a41781f8047b36bd11dbcaa84dc?source=copy_linkexploit
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