| Title | TRENDnet TEW-821DAP TEW-821DAP Stack-based Buffer Overflow |
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| Description | TEW-821DAP mycli Wifi VAP/MAC Filter UCI Stack Overflow
Hello Security Team,
We would like to report a security vulnerability affecting TRENDnet TEW-821DAP Access Point (v2.2.01b05). The affected component is sbin/mycli. 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_20260702/04_821dap-mycli-wifi-overflow |
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| User | fuhanhan2014 (UID 98832) |
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| Submission | 07/02/2026 11:08 (2 months ago) |
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| Moderation | 08/18/2026 14:00 (2 months later) |
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| Status | Duplicate |
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| VulDB entry | 258086 [TRENDnet AC1200 TEW-821DAP 3.00b06 Command-Line Interface mycli stack-based overflow] |
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| Points | 0 |
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