CVE-2026-75976
TRENDnet TEW-823DRU NVRAM wan.cgi strcpy stack-based overflow
- State
- Published
- Severity
- 9.4 Critical
- Published
- Aug 18, 2026
- Updated
- Aug 25, 2026
- Reserved
- Aug 18, 2026
Description
A weakness has been identified in TRENDnet TEW-823DRU 1.1.02b01. Impacted is the function strcpy of the file /cgi-bin/wan.cgi of the component NVRAM. This manipulation of the argument wan_l2tp_password causes stack-based buffer overflow. 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 | 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 |
|---|---|
TEW-823DRUTRENDnet |
|
References
- VDB-391892 | TRENDnet TEW-823DRU NVRAM wan.cgi strcpy stack-based overflowvdb-entrytechnical-description
- VDB-391892 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-75976 | CVE Analysis and Reportthird-party-advisory
- Submit #877796 | TRENDnet TEW-823DRU TEW-823DRU Stack-based Buffer Overflowthird-party-advisory
- https://github.com/meishigana/CVE/tree/main/team15_20260702/10_823dru-rc-bofrelated
- https://github.com/meishigana/CVE/blob/main/team15_20260702/10_823dru-rc-bof/poc/poc-rc-overflow.pyexploit
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