CVE-2026-73819 Ebyte NA111-M Weak Authentication
An unauthenticated attacker on the adjacent network can bypass authentication to modify critical settings and change access credentials on the Ebyte NA111-M device.
- 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-2026-73819?
CVE-2026-73819 is a critical authentication bypass vulnerability in Ebyte NA111-M Firmware, published on 31 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The affected Ebyte
product's vendor configuration utility permits access to administrative functions without verifying the operator's identity under certain credential conditions. An unauthenticated attacker on the adjacent network could modify critical settings or change access credentials, potentially preventing legitimate administrators from managing the device.
Weakness: CWE-1390
Which versions are affected by CVE-2026-73819?
How do I fix CVE-2026-73819?
No fix has been published for CVE-2026-73819 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-73819 being exploited?
There is no known exploitation of CVE-2026-73819 in the wild and no public exploit code.
Sources
Also known as GHSA-qww8-jv59-fcxh.