Buffer overflow in Trendnet Tew-821dap
CVE-2026-7607
A security vulnerability has been detected in TRENDnet TEW-821DAP 1.12B01. Impacted is the function auto_update_firmware of the component Firmware Udpate. The manipulation of the argument str leads to buffer overflow. The attack may be ini…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (25.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Trendnet Tew-821dap — versions 1.0r, 1.12B01
- Trendnet Tew-821dap_firmware — versions 1.12b01
Weakness classification (CWE)
References
- VDB-360564 | TRENDnet TEW-821DAP Firmware Udpate auto_update_firmware buffer overflow (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-360564 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #806214 | Trendnet TEW-821DAP v1.12B01 CWE-120 Buffer Copy without Checking Size of Input (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, patch)
Frequently asked questions
- What is CVE-2026-7607?
- CVE-2026-7607 is a high-severity vulnerability in Trendnet Tew-821dap, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-05-02.
- How severe is CVE-2026-7607?
- High severity. CVSS v3 base score is 8.8 out of 10.