CVE-2026-7609CWE-77CWE-78

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

Medium · published May 2, 2026

CVSS v4.0
5.3
EPSS
6%
Percentile
93.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
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
EPSS
0.05730 · 93.0th percentile
Weaknesses
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection'); CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-05-02T09:00Z
EPSS history
Timeline
  • 02 MAY 09:00Z
    TRENDnet TEW-821DAP Firmware Udpate diagnostic tools_diagnostic os command injection
    cvelistv5