CVE-2026-7609

Name: CVE-2026-7609
Creator: NVD / NIST
Published: 2026-05-02T10:16:19.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.1/10EPSS 4.12%

Last modified Jun 17, 2026

CVE-2026-7609 is a low-severity vulnerability rated 2.1/10 on the CVSS scale. 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. EPSS estimates a 4.12% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

2.1/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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:X/V:X/RE:X/U:X

EPSS Probability

4.12%

89.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Trendnet	Tew-821dap Firmware	1.12b01

References

https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_CI2.mdExploit, Third Party Advisory
https://vuldb.com/submit/806216Third Party Advisory, VDB Entry
https://vuldb.com/vuln/360566Third Party Advisory, VDB Entry
https://vuldb.com/vuln/360566/ctiPermissions Required, VDB Entry

Timeline

Published: May 2, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-7609?

How severe is CVE-2026-7609?

CVE-2026-7609 has a CVSS score of 2.1/10 (LOW severity). The EPSS model estimates a 4.12% probability of exploitation in the next 30 days.

How do I fix CVE-2026-7609?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-7609?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST