Advisories › Ebyte › ICSA-26-237-06
Ebyte NE2-D11: 11 CVEs, Critical 9.8
Summary
CISA reports 11 vulnerabilities in Ebyte NE2-D11 Firmware. Weakness types: Missing Authentication for Critical Function, Cleartext Transmission of Sensitive Information, Insufficiently Protected Credentials (+6 more). Successful exploitation of these vulnerabilities could allow an attacker to gain unauthorized administrative access, disclose sensitive information, modify device configuration, hijack authenticated sessions, and disrupt device operation. Highest CVSS v3 score: 9.8 (Critical), exploitable over the network.
What to do: Act now: Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development.
At a glance
- Vendor
- Ebyte
- Products
- NE2-D11 Firmware
- CVEs
- CVE-2026-73125, CVE-2026-73809, CVE-2026-73839, CVE-2026-71187, CVE-2026-76179, CVE-2026-75814, CVE-2026-76940, CVE-2026-75548, CVE-2026-75813, CVE-2026-76945, CVE-2026-69658
- Highest CVSS v3
- 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Highest CVSS v4
- –
- Known exploited (KEV)
- No CVE from this advisory is on the KEV list as of the last refresh
- Sectors (per CISA)
- Critical Manufacturing, Energy
- Deployed
- Worldwide
- Vendor HQ
- China
Vulnerabilities
| CVE | Weakness | CVSS v3 | CVSS v4 | KEV | Description (from advisory) |
|---|---|---|---|---|---|
| CVE-2026-73125 | Missing Authentication for Critical Function | 9.8 | – | No | Ebyte device web management interface does not consistently enforce authentication before granting access to administrative functionality. An unauthenticated remote attacker could access sensitive configuration information, modify device settings, or disrupt availability. |
| CVE-2026-73809 | Cleartext Transmission of Sensitive Information | 7.5 | – | No | A cleartext transmission of sensitive information vulnerability exists in certain Ebyte gateway products. The web management interface does not adequately protect sensitive communications using transport-layer encryption. An attacker with access to network traffic could intercept authentication or session-related information transmitted between a user and the affected device. Successful exploitati… |
| CVE-2026-73839 | Insufficiently Protected Credentials | 4.6 | – | No | Administrative credentials may be exposed in plaintext within the Ebyte device's management interface, increasing the risk of credential compromise through visual or remote observation. This undermines the confidentiality of device access. |
| CVE-2026-71187 | Use of Client-Side Authentication | 9.8 | – | No | 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. |
| CVE-2026-76179 | Use of GET Request Method With Sensitive Query Strings | 9.8 | – | No | An improper protection of authentication tokens vulnerability exists in certain Ebyte gateway products. Authentication tokens used by the web management interface are insufficiently protected during client-side session handling, which may allow an attacker with access to exposed session information to obtain and reuse a valid token. Successful exploitation could allow an attacker to impersonate an… |
| CVE-2026-75814 | Cross-Site Request Forgery (CSRF) | 8.8 | – | No | Ebyte device does not adequately verify the origin or authenticity of requests submitted to the web management interface. An unauthenticated remote attacker could persuade an authenticated administrator to visit a crafted page, causing unauthorized configuration changes or a disruption of device availability. |
| CVE-2026-76940 | Improper Restriction of Excessive Authentication Attempts | 7.5 | – | No | The affected Ebyte device does not restrict repeated authentication attempts through rate limiting or account lockout mechanisms. This could allow an attacker to perform automated authentication attacks against deployments that rely on password based authentication. |
| CVE-2026-75548 | Improper Restriction of Rendered UI Layers or Frames | 5.4 | – | No | The affected Ebyte device web management interface does not restrict the interface from being rendered within an external frame. An unauthenticated remote attacker could use a crafted webpage to mislead an authenticated administrator into initiating unintended configuration changes or disruptive actions. |
| CVE-2026-75813 | Missing Authorization | 7.5 | – | No | Certain configuration endpoints may lack proper server-side authorization checks, allowing unauthorized users to access or modify sensitive device settings. This could result in full compromise of device functionality. |
| CVE-2026-76945 | Use of Client-Side Authentication | 7.5 | – | No | The affected Ebyte device relies on client-managed authentication tokens without sufficient server-side validation. An attacker may replay or manipulate authentication tokens to gain unauthorized access to administrative functionality. |
| CVE-2026-69658 | Cleartext Transmission of Sensitive Information | 9.8 | – | No | MQTT credentials and control traffic are transmitted in cleartext, exposing sensitive information to network-level attackers. This may enable unauthorized device impersonation and disruption of messaging functions. |
Affected products (1)
- Ebyte NE2-D11 Firmware: FW-9167-0-11
Vendor fixes and mitigations (from advisory)
- Mitigation: 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.
Also apply CISA's standard ICS practices: minimize network exposure, keep control networks behind firewalls and isolated from business networks, and use up-to-date secure remote access.
Sources
This page is generated automatically from the CISA advisory text. It is not a substitute for the vendor's guidance; verify affected versions and fixes at the source before making changes to control systems.