CVE-2026-71187

Ebyte NA111-M Use of Client-Side Authentication

Published Aug 27, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Workaround

Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Ebyte NE2-D11 Use of Client-Side Authentication Ebyte NA111-M Use of Client-Side Authentication
Type Values Removed Values Added
First Time appeared Ebyte
Ebyte ebyte Ne2-d11 Firmware
Vendors & Products Ebyte
Ebyte ebyte Ne2-d11 Firmware
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Ebyte NE2-D11 Use of Client-Side Authentication
Weaknesses CWE-603
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Oct 5, 2026, 7:23 PM
Reserved
Aug 20, 2026, 3:03 PM
Status
Deferred
Published
Aug 28, 2026, 12:18 AM
Modified
Aug 31, 2026, 7:18 PM