CVE-2026-76940highCWE-307

CVE-2026-76940: high-severity vulnerability in Ebyte NA111-M Firmware

Ebyte NA111-M Improper Restriction of Excessive Authentication Attempts

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.7epss 0.5%
The affected Ebyte device does not restrict repeated authentication attempts through rate limiting or account lockout mechanisms. This could allow an attacker to perform automated authentication attacks against deployments that rely on password based authentication.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
Ebyte · Ebyte NA111-M Firmware
Related CVEs — Ebyte NA111-M Firmware

In the same product, most dangerous first.

CVE-2026-73125CRITICALEbyte NA111-M Missing Authentication for Critical FunctionEPSS 0.8%CVE-2026-71187CRITICALEbyte NA111-M Use of Client-Side AuthenticationEPSS 0.8%CVE-2026-76179CRITICALEbyte NA111-M Use of GET Request Method With Sensitive Query StringsEPSS 0.7%CVE-2026-73819CRITICALEbyte NA111-M Weak AuthenticationEPSS 0.5%CVE-2026-77966HIGHEbyte NA111-M Missing AuthorizationEPSS 0.4%CVE-2026-76133CRITICALEbyte NA111-M Use of a Broken or Risky Cryptographic AlgorithmEPSS 0.4%