CVE-2026-7607

HIGH 8.8

TRENDnet TEW-821DAP Firmware Udpate auto_update_firmware buffer overflow

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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 initiated remotely. The vendor explains: "That firmware version will only work on our hardware version v1.xR. We have already EOL that product 8 years ago and are no longer selling". This vulnerability only affects products that are no longer supported by the maintainer.

CWE	CWE-120 CWE-119
Vendor	trendnet
Product	tew-821dap
Published	May 2, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

TRENDnet / TEW-821DAP

1.12B01

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/360564 vuldb.com: https://vuldb.com/vuln/360564/cti vuldb.com: https://vuldb.com/submit/806214 github.com: https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_BO.md

Credits

🔍 IOT_Res (VulDB User) VulDB CNA Team