CVE-2025-14175 Weak Algorithm Support in SSH Server on TL-WR820N
An adjacent attacker can intercept and decrypt SSH traffic on TP-Link TL-WR820N routers due to weak cryptographic algorithm support.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-14175?
CVE-2025-14175 is a medium-severity vulnerability in TP-Link Systems Inc. TL-WR820N v2.8, published on 29 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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. Exploitation may expose sensitive information and compromise confidentiality.
Weakness: CWE-327
Which versions are affected by CVE-2025-14175?
It affects 1 product.
Products include Tp-Link Tl-Wr820n Firmware.
How do I fix CVE-2025-14175?
No fix has been published for CVE-2025-14175 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-14175 being exploited?
There is no known exploitation of CVE-2025-14175 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in TP-Link Systems Inc. TL-WR820N v2.8
Sources
Also known as GHSA-w5v4-r6mh-235c.