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 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 v3 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_BO.md	Exploit Third Party Advisory
https://vuldb.com/submit/806214	Third Party Advisory VDB Entry
https://vuldb.com/vuln/360564	Third Party Advisory VDB Entry
https://vuldb.com/vuln/360564/cti	Permissions Required VDB Entry

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:trendnet:tew-821dap_firmware:1.12b01:*:*:*:*:*:*:*

cpe:2.3:h:trendnet:tew-821dap:1.0r:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-02 08:16

Updated : 2026-06-17 11:02

NVD link : CVE-2026-7607

Mitre link : CVE-2026-7607

CVE.ORG link : CVE-2026-7607

JSON object : View

Products Affected

trendnet

tew-821dap
tew-821dap_firmware

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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