Security Advisory on Weak Algorithm Support in SSH Server on TL-WR820N (CVE-2025-14175)

Vulnerability Description:

A vulnerability in the SSH server of TP-Link TL-WR820N v2.80 allows the use of a weak cryptographic algorithm, enabling an adjacent attacker to intercept and decrypt SSH traffic.

Impacts:

Exploitation may expose sensitive information and compromise confidentiality.

CVSS v4.0 Score: 6 / Medium

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Affected Products/Versions and Fixes:

Note: This product is not sold in the US market.

Recommendation(s):

We strongly recommend that users with the affected device(s) take the following action(s):

1. Download and update to the latest firmware version to fix these vulnerabilities:

Download for TL-WR820N (EN)

Download for TL-WR820N (India)

Disclaimer:

If you do not take the recommended actions stated above, this vulnerability concern will remain. TP-Link cannot bear any responsibility for the consequences that could have been avoided by following the recommended actions in this statement.