Client-Side Authentication Flaw in Ebyte Device Exposes Vulnerability
CVE-2026-71187

9.3CRITICAL

Key Information:

Vendor

Ebyte

Status
Ebyte Ne2-d11 Firmware
Vendor
CVE Published:
27 August 2026

What is CVE-2026-71187?

A significant vulnerability has been identified in the Ebyte device, which relies on flawed client-side authentication logic. This issue allows unauthenticated users to create legitimate authentication requests, enabling them to bypass security measures and gain unauthorized administrative access to the device. This can lead to serious security breaches, making it crucial for users to assess their risk and take appropriate actions to mitigate potential exploitation.

Affected Version(s)

Ebyte NE2-D11 Firmware FW-9167-0-11

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-2...
https://github.com/cisagov/CSAF/blob/develop/csaf_files/O...

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jithin Nambiar reported this vulnerability to CISA.
.