CVE-2026-73809 Ebyte NA111-M Cleartext Transmission of Sensitive Information
Attackers can intercept cleartext authentication data on Ebyte gateways, leading to credential theft and unauthorized device access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73809?
CVE-2026-73809 is a high-severity vulnerability in Ebyte NA111-M Firmware, published on 27 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A cleartext transmission of sensitive information vulnerability exists in certain Ebyte gateway products. The web management interface does not adequately protect sensitive communications using transport-layer encryption. An attacker with access to network traffic could intercept authentication or session-related information transmitted between a user and the affected device. Successful exploitation could result in disclosure of sensitive information and unauthorized access to device management functionality.
Weakness: CWE-319
Which versions are affected by CVE-2026-73809?
How do I fix CVE-2026-73809?
No fix has been published for CVE-2026-73809 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-73809 being exploited?
There is no known exploitation of CVE-2026-73809 in the wild and no public exploit code.
Sources
Also known as GHSA-54gv-56r8-hcmv.