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CVE-2026-77966— Ebyte NA111-M Missing Authorization

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 NA111-M是中国Ebyte公司的一款无线网络模块。 Ebyte NA111-M 9013-2-17版本存在授权问题漏洞，该漏洞源于产品未在有限和管理功能之间提供分离，可能导致低权限认证攻击者访问安全敏感配置功能并修改设置，影响设备机密性、完整性和可用性。

CVSS 8.8 · High EPSS 0.44% · P37

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-2026-77966

Vulnerability Information
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Vulnerability Title
Ebyte NA111-M Missing Authorization
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Ebyte NA111-M 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ebyte NA111-M是中国Ebyte公司的一款无线网络模块。 Ebyte NA111-M 9013-2-17版本存在授权问题漏洞，该漏洞源于产品未在有限和管理功能之间提供分离，可能导致低权限认证攻击者访问安全敏感配置功能并修改设置，影响设备机密性、完整性和可用性。
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-2026-77966

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III. Intelligence Information for CVE-2026-77966

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Vendor Advisories for CVE-2026-77966 (1)

Same Patch Batch · Ebyte · 2026-08-31 · 4 CVEs total

CVE-2026-76133 9.8 CRITICAL Ebyte NA111-M Use of a Broken or Risky Cryptographic Algorithm
CVE-2026-73819 9.8 CRITICAL Ebyte NA111-M Weak Authentication
CVE-2026-77975 6.5 MEDIUM Ebyte NA111-M Cleartext Storage of Sensitive Information

IV. Related Vulnerabilities

Same product: Ebyte NA111-M Firmware
Same vendor: Ebyte
Same weakness: CWE-862

V. Comments for CVE-2026-77966

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