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CVE-2026-71187— Ebyte NE2-D11 Use of Client-Side Authentication

Quick assessment

Affected
Ebyte Ebyte NE2-D11 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.

该 Ebyte 设备依赖于客户端端的认证逻辑，而未认证的用户也可以复现该逻辑。攻击者可能通过生成有效的认证请求来绕过认证，从而获得对设备的访问权限。

CVSS 9.8 · Critical EPSS 0.52% · P42

Possible ATT&CK Techniques 1 AI

T1110.001 · Password Guessing

Affected Version Matrix 1

VendorProduct Version RangeStatus
Ebyte Ebyte NE2-D11 Firmware FW-9167-0-11 affected
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I. Basic Information for CVE-2026-71187

Vulnerability Information
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Vulnerability Title
Ebyte NE2-D11 Use of Client-Side Authentication
Source: CVE Program / CVE List V5
Vulnerability Description
The Ebyte device relies on client side authentication logic that can be reproduced by unauthenticated users. An attacker may generate valid authentication requests and bypass authentication to obtain administrative access to the device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用客户端的认证机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Ebyte Ebyte NE2-D11 Firmware FW-9167-0-11 -

II. Public POCs for CVE-2026-71187

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-71187

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Vendor Advisories for CVE-2026-71187 (1)

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

CVE-2026-69658 9.8 CRITICAL Ebyte NE2-D11 Cleartext Transmission of Sensitive Information
CVE-2026-76179 9.8 CRITICAL Ebyte NE2-D11 Use of GET Request Method With Sensitive Query Strings
CVE-2026-73125 9.8 CRITICAL Ebyte NE2-D11 Missing Authentication for Critical Function
CVE-2026-75814 8.8 HIGH Ebyte NE2-D11 Cross-Site Request Forgery
CVE-2026-77977 8.1 HIGH Ebyte NE2-D11 Missing Authentication for Critical Function
CVE-2026-75813 7.5 HIGH Ebyte NE2-D11 Missing Authorization
CVE-2026-76940 7.5 HIGH Ebyte NE2-D11 Improper Restriction of Excessive Authentication Attempts
CVE-2026-76945 7.5 HIGH Ebyte NE2-D11 Use of Client-Side Authentication
CVE-2026-73809 7.5 HIGH Ebyte NE2-D11 Cleartext Transmission of Sensitive Information
CVE-2026-75548 5.4 MEDIUM Ebyte NE2-D11 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 NE2-D11 Firmware
Same vendor: Ebyte
Same weakness: CWE-603

V. Comments for CVE-2026-71187

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