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Vulnerability record · CVE-2026-7607 · published 2 May 2026

CVE-2026-7607: Trendnet tew-821dap firmware memory buffer overflow vulnerability

Trendnet · Tew 821dap Firmware

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.

8.7 CVSS 4.0 High EPSS 1.0% · top 38.4% CWE-119 · Memory buffer overflowCWE-120 · Classic buffer overflow
8.7CVSS 4.0 base score, v2 9.0
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_BO.md ExploitThird Party Advisory
https://vuldb.com/submit/806214 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/360564 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/360564/cti Permissions RequiredVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.0CVE-2023-51146Trendnet tew-821dap firmware stack-based buffer overflow vulnerabilityBuffer Overflow vulnerability in TRENDnet AC1200 TEW-821DAP with firmware version 3.00b06 allows an attacker to execute arbitrary code via the adm_ad…EPSS 0.50%8.0CVE-2023-51147Trendnet tew-821dap firmware stack-based buffer overflow vulnerabilityBuffer Overflow vulnerability in TRENDnet Trendnet AC1200 TEW-821DAP with firmware version 3.00b06 allows an attacker to execute arbitrary code via t…EPSS 0.50%8.0CVE-2023-51148Trendnet tew-821dap firmware stack-based buffer overflow vulnerabilityAn issue in TRENDnet Trendnet AC1200 Dual Band PoE Indoor Wireless Access Point TEW-821DAP v.3.00b06 allows an attacker to execute arbitrary code via…EPSS 0.53%6.3CVE-2026-7611Trendnet tew-821dap firmware insufficient verification of data authenticity vulnerabilityA vulnerability was found in TRENDnet TEW-821DAP up to 1.12B01. This impacts the function platform_do_upgrade_cameo_dev of the file cameo_dev.sh of t…EPSS 0.31%6.3CVE-2026-7606Trendnet tew-821dap firmware insufficient verification of data authenticity vulnerabilityA weakness has been identified in TRENDnet TEW-821DAP 1.12B01. This issue affects the function find_hwid/new_gui_update_firmware of the component Fir…EPSS 0.31%2.9CVE-2026-7610Trendnet tew-821dap firmware cleartext transmission vulnerabilityA vulnerability has been found in TRENDnet TEW-821DAP 1.12B01. This affects an unknown function of the file /www/cgi/ssi of the component Firmware Up…EPSS 0.45%2.1CVE-2026-7609Trendnet tew-821dap firmware command injection vulnerabilityA flaw has been found in TRENDnet TEW-821DAP up to 1.12B01. The impacted element is the function tools_diagnostic of the file /tmp/diagnostic of the …EPSS 5.7%2.0CVE-2026-7608Trendnet tew-821dap firmware command injection vulnerabilityA vulnerability was detected in TRENDnet TEW-821DAP up to 1.12B01. The affected element is the function tools_diagnostic. The manipulation results in…EPSS 9.8%

Source: NIST National Vulnerability Database (record CVE-2026-7607), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.