CVE-2026-71187

CRITICAL 9.8

Ebyte NE2-D11 Use of Client-Side Authentication

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-603
Vendor	ebyte
Product	ebyte ne2-d11 firmware
Published	Aug 27, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Ebyte / Ebyte NE2-D11 Firmware

FW-9167-0-11

References

NVD ↗ CVE.org ↗ EPSS Data ↗

cisa.gov: https://www.cisa.gov/news-events/ics-advisories/icsa-26-237-06 github.com: https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-237-06.json

Credits

Jithin Nambiar reported this vulnerability to CISA.