CVE-2025-1680 Open redirect in TN-4500A Series
Administrative users can inject Host headers to redirect users or forge links, enabling phishing attacks on Moxa Ethernet switches.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-1680?
CVE-2025-1680 is a vulnerability in Moxa TN-4500A Series, published on 23 Oct 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
An acceptance of extraneous untrusted data with trusted data vulnerability has been identified in Moxa’s Ethernet switches, which allows attackers with administrative privileges to manipulate HTTP Host headers by injecting a specially crafted Host header into HTTP requests sent to an affected device’s web service. This vulnerability is classified as Host Header Injection, where invalid Host headers can manipulate to redirect users, forge links, or phishing attacks. There is no impact to the confidentiality, integrity, and availability of the affected device; no loss of confidentiality, integrity, and availability within any subsequent systems.
Weakness: CWE-349
Which versions are affected by CVE-2025-1680?
How do I fix CVE-2025-1680?
No fix has been published for CVE-2025-1680 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-1680 being exploited?
There is no known exploitation of CVE-2025-1680 in the wild and no public exploit code.
Sources
Also known as GHSA-8fj5-vvv3-q47w.