Home/CVE/A security vulnerability has been detected in TRENDnet TEW-821DAP 1.12B01. Impacted is the function auto_update_firmware
CVE

CVE-2026-7607

A security vulnerability has been detected in TRENDnet TEW-821DAP 1.12B01. Impacted is the function auto_update_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.

HIGH · CVSS 8.8 EPSS 0.00092
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
▤

Affected Products & Versions

1
trendnet tew-821dap firmwareall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · TEW-821DAP_BO.mdgithub.com
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD02 May 2026 · 08:16 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://vuldb.com/submit/806214Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/360564Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/360564/ctiPermissions RequiredVDB Entry
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