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CVE-2026-7609

TRENDnet TEW-821DAP Firmware Udpate diagnostic tools_diagnostic os command injection

Published: May 2, 2026Updated: May 6, 2026 Sources: CVE List NVDCWE-77
NVD MITRE
6.3CVSSMEDIUM
EPSS Score
4.1%
Top 10.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

A 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 component Firmware Udpate. This manipulation causes os command injection. Remote exploitation of the attack is possible. The exploit has been published and may be used. 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 Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-77CWE-78

Affected Products

TEW-821DAPTRENDnetNetworking Infrastructure
tew-821dap firmwaretrendnetNetworking Infrastructure
trendnetcommercialUSNetworking Infrastructureaka trendnet inc.

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://vuldb.com/vuln/360566
vuldb.com
https://vuldb.com/vuln/360566/cti
vuldb.com
https://vuldb.com/submit/806216
vuldb.com
and 1 more references View all →

Timeline

Published
May 2, 2026
Last Updated
May 6, 2026

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