VULNERABILITY INTELLIGENCE
CVE-2026-77977
CVSS score7.2 HIGH
EPSS probability0.37%
CISA KEVNot currently listed
Published2026-08-28
Last modified2026-08-31
CVSS vectorCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Description
Ebyte gateway product's vendor configuration utility does not require authentication before allowing certain disruptive administrative actions when default credentials remain configured. An unauthenticated attacker on the adjacent network could reboot the device or restore factory settings, resulting in a loss of configuration and service availability.
Weakness classification
- CWE-306: Missing Authentication for Critical Function