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CVE-2026-76940— Ebyte NA111-M Improper Restriction of Excessive Authentication Attempts

Quick assessment

Affected
Ebyte Ebyte NA111-M Firmware
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Ebyte NE2-D11是中国Ebyte公司的一款物联网设备。 Ebyte NE2-D11 FW-9167-0-11版本存在授权问题漏洞，该漏洞源于未通过速率限制或账户锁定机制限制重复身份验证尝试，可能导致攻击者对依赖基于密码身份验证的部署执行自动化身份验证攻击。

CVSS 7.5 · High EPSS 0.50% · P42

Affected Version Matrix 1

VendorProduct Version RangeStatus
Ebyte Ebyte NA111-M Firmware 9013-2-17 affected
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I. Basic Information for CVE-2026-76940

Vulnerability Information
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Vulnerability Title
Ebyte NA111-M Improper Restriction of Excessive Authentication Attempts
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Ebyte NE2-D11 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ebyte NE2-D11是中国Ebyte公司的一款物联网设备。 Ebyte NE2-D11 FW-9167-0-11版本存在授权问题漏洞，该漏洞源于未通过速率限制或账户锁定机制限制重复身份验证尝试，可能导致攻击者对依赖基于密码身份验证的部署执行自动化身份验证攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Ebyte Ebyte NA111-M Firmware 9013-2-17 -

II. Public POCs for CVE-2026-76940

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III. Intelligence Information for CVE-2026-76940

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Vendor Advisories for CVE-2026-76940 (1)

Same Patch Batch · Ebyte · 2026-08-27 · 12 CVEs total

CVE-2026-71187 9.8 CRITICAL Ebyte NA111-M Use of Client-Side Authentication
CVE-2026-69658 9.8 CRITICAL Ebyte NA111-M Cleartext Transmission of Sensitive Information
CVE-2026-76179 9.8 CRITICAL Ebyte NA111-M Use of GET Request Method With Sensitive Query Strings
CVE-2026-73125 9.8 CRITICAL Ebyte NA111-M Missing Authentication for Critical Function
CVE-2026-75814 8.8 HIGH Ebyte NA111-M Cross-Site Request Forgery
CVE-2026-77977 8.1 HIGH Ebyte NA111-M Missing Authentication for Critical Function
CVE-2026-75813 7.5 HIGH Ebyte NE2-D11 Missing Authorization
CVE-2026-76945 7.5 HIGH Ebyte NE2-D11 Use of Client-Side Authentication
CVE-2026-73809 7.5 HIGH Ebyte NA111-M Cleartext Transmission of Sensitive Information
CVE-2026-75548 5.4 MEDIUM Ebyte NA111-M Improper Restriction of Rendered UI Layers or Frames
CVE-2026-73839 4.6 MEDIUM Ebyte NE2-D11 Insufficiently Protected Credentials

IV. Related Vulnerabilities

Same product: Ebyte NA111-M Firmware
Same vendor: Ebyte
Same weakness: CWE-307

V. Comments for CVE-2026-76940

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