Auth bypass in Ebyte Na111-M Firmware
CVE-2026-77966
The affected Ebyte product does not provide separation between limited and administrative management functions. A low privileged authenticated attacker could access security sensitive configuration functions and modify settings that affect the confidentiality, integrity, or availability of the device.
Vulnerability class: Broken Access Control
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Ebyte Na111-m Firmware — versions 9013-2-17
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-77966?
- CVE-2026-77966 is a high-severity vulnerability in Ebyte Na111-M Firmware, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-08-31.
- How severe is CVE-2026-77966?
- High severity. CVSS v3 base score is 8.8 out of 10.