CVE-2026-75976TRENDnet TEW-823DRU NVRAM wan.cgi strcpy stack-based overflow

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• VDB-391892 | TRENDnet TEW-823DRU NVRAM wan.cgi strcpy stack-based overflow vdb-entrytechnical-description
• VDB-391892 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-required
• CVE-2026-75976 | CVE Analysis and Report third-party-advisory
• Submit #877796 | TRENDnet TEW-823DRU TEW-823DRU Stack-based Buffer Overflow third-party-advisory
• https://github.com/meishigana/CVE/tree/main/team15_20260702/10_823dru-rc-bof related
• https://github.com/meishigana/CVE/blob/main/team15_20260702/10_823dru-rc-bof/poc/poc-rc-overflow.py exploit