CVE-2026-4346

MediumCVSS 6.8/10Last modified Jun 17, 2026

Description

The vulnerability affecting TL-WR850N v3 allows cleartext storage of administrative and Wi-Fi credentials in a region of the device’s flash memory while the serial interface remains enabled and protected by weak authentication. An attacker with physical access and the ability to connect to the serial port can recover sensitive information, including the router’s management password and wireless network key.

Successful exploitation can lead to full administrative control of the device and unauthorized access to the associated wireless network.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-312

Affected software

No affected versions have been published.

Timeline

Published
Mar 26, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-4346: Medium severity, CVSS 6.8 | Vulnix