| Title | TRENDnet TEW-823DRU TEW-823DRU Stack-based Buffer Overflow |
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| Description | TEW-823DRU sbin/rc NVRAM strcpy Stack Overflow
Hello Security Team,
We would like to report a security vulnerability affecting TRENDnet TEW-823DRU AC3200 Router (v1.1.02b01). The affected component is sbin/rc. Based on our analysis, the issue is a Stack-based Buffer Overflow / RCE (CWE-121) with an estimated severity of 9.8 Critical.
The attached package contains:
- technical_report.md with the detailed vulnerability analysis,
- poc/ with reproduction material,
- evidence/ with supporting FirmRec or symbolic-execution logs,
- evidence_index.md and metadata.json for reviewer navigation.
Please confirm receipt and advise on your disclosure process and tracking identifier. We can provide additional reproduction details if needed.
Regards,
Research Team
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| Source | ⚠️ https://github.com/meishigana/CVE/tree/main/team15_20260702/10_823dru-rc-bof |
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| User | fuhanhan2015 (UID 99498) |
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| Submission | 07/02/2026 11:39 (2 months ago) |
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| Moderation | 08/18/2026 20:12 (2 months later) |
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| Status | Accepted |
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| VulDB entry | 391892 [TRENDnet TEW-823DRU 1.1.02b01 NVRAM /cgi-bin/wan.cgi strcpy wan_l2tp_password stack-based overflow] |
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| Points | 20 |
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