CVE-2026-7611

TRENDnet TEW-821DAP Firmware Update cameo_dev.sh platform_do_upgrade_cameo_dev data authenticity

State: Published
Severity: 6.3 Medium
Published: May 2, 2026
Updated: May 4, 2026
Reserved: May 1, 2026

Description

A vulnerability was found in TRENDnet TEW-821DAP up to 1.12B01. This impacts the function platform_do_upgrade_cameo_dev of the file cameo_dev.sh of the component Firmware Update Handler. Performing a manipulation results in insufficient verification of data authenticity. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is said to be difficult. 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.

Scores

CVSS	Score	Vector	Source
4.0	6.3 Medium	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X	VulDB
3.1	3.7 Low	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:X/RL:X/RC:R	VulDB
3.0	3.7 Low	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:X/RL:X/RC:R	VulDB
2.0	2.6 Low	AV:N/AC:H/Au:N/C:N/I:P/A:N/E:ND/RL:ND/RC:UR	VulDB

Weaknesses

CWE-345 Insufficient Verification of Data Authenticity

Affected Products

Product	Versions
TEW-821DAPTRENDnet	1.12B01Affected

References

VDB-360568 | TRENDnet TEW-821DAP Firmware Update cameo_dev.sh platform_do_upgrade_cameo_dev data authenticityvdb-entrytechnical-description
VDB-360568 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #806218 | Trendnet TEW-821DAP v1.12B01 CWE-327 Use of a Broken or Risky Cryptographic Algorithmthird-party-advisory
https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_Inte.mdpatch

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