Ebyte NE2-D11

Summary

Multiple critical vulnerabilities have been identified in Ebyte NE2-D11 devices, affecting firmware version FW-9167-0-11. These flaws could allow attackers to gain unauthorized administrative access, disclose sensitive information, modify configurations, hijack sessions, and disrupt operations. Ebyte has acknowledged the issues and stated a patch is in development, but has not responded to further coordination requests from CISA, leaving users uncertain about remediation status.

Full text

ICS Advisory Ebyte NE2-D11 Release DateAugust 25, 2026 Alert CodeICSA-26-237-06 Related topics: Industrial Control System Vulnerabilities , Industrial Control Systems View CSAF Summary 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. The following versions of Ebyte NE2-D11 are affected: NE2-D11 Firmware FW-9167-0-11 CVSS Vendor Equipment Vulnerabilities v3 9.8 Ebyte Ebyte NE2-D11 Missing Authentication for Critical Function, Cleartext Transmission of Sensitive Information, Insufficiently Protected Credentials, Use of Client-Side Authentication, Use of GET Request Method With Sensitive Query Strings, Cross-Site Request Forgery (CSRF), Improper Restriction of Excessive Authentication Attempts, Improper Restriction of Rendered UI Layers or Frames, Missing Authorization Background Critical Infrastructure Sectors: Critical Manufacturing, Energy Countries/Areas Deployed: Worldwide Company Headquarters Location: China Vulnerabilities Expand All + CVE-2026-73125 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. View CVE Details Affected Products Ebyte NE2-D11 Vendor:Ebyte Product Version:Ebyte NE2-D11 Firmware: FW-9167-0-11 Product Status:known_affected Remediations MitigationEbyte 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. Relevant CWE: CWE-306 Missing Authentication for Critical Function Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL 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 CVE-2026-73809 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 exploitation could result in disclosure of sensitive information and unauthorized access to device management functionality. View CVE Details Affected Products Ebyte NE2-D11 Vendor:Ebyte Product Version:Ebyte NE2-D11 Firmware: FW-9167-0-11 Product Status:known_affected Remediations MitigationEbyte 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. Relevant CWE: CWE-319 Cleartext Transmission of Sensitive Information Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2026-73839 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. View CVE Details Affected Products Ebyte NE2-D11 Vendor:Ebyte Product Version:Ebyte NE2-D11 Firmware: FW-9167-0-11 Product Status:known_affected Remediations MitigationEbyte 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. Relevant CWE: CWE-522 Insufficiently Protected Credentials Metrics CVSS Version Base Score Base Severity Vector String 3.1 4.6 MEDIUM CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 4.0 5.1 MEDIUM CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2026-71187 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. View CVE Details Affected Products Ebyte NE2-D11 Vendor:Ebyte Product Version:Ebyte NE2-D11 Firmware: FW-9167-0-11 Product Status:known_affected Remediations MitigationEbyte 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. Relevant CWE: CWE-603 Use of Client-Side Authentication Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL 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 CVE-2026-76179 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 authenticated user and gain unauthorized access to device management functionality. View CVE Details Affected Products Ebyte NE2-D11 Vendor:Ebyte Product Version:Ebyte NE2-D11 Firmware: FW-9167-0-11 Product Status:known_affected Remediations MitigationEbyte 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. Relevant CWE: CWE-598 Use of GET Request Method With Sensitive Query Strings Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL 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 CVE-2026-75814 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. View CVE Details Affected Products Ebyte NE2-D11 Vendor:Ebyte Product Version:Ebyte NE2-D11 Firmware: FW-9167-0-11 Product Status:known_affected Remediations MitigationEbyte 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. Relevant CWE: CWE-352 Cross-Site Request Forgery (CSRF) Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H 4.0 8.6 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-76940 The affected Ebyte device does not restrict repeated authentication attempts through rate limiting or account lockout mechanisms. This

Indicators of Compromise

• cve — CVE-2026-73125
• cve — CVE-2026-73809
• cve — CVE-2026-73839
• cve — CVE-2026-71187
• cve — CVE-2026-76179
• cve — CVE-2026-75814
• cve — CVE-2026-76940
• cve — CVE-2026-75548
• cve — CVE-2026-75813
• cve — CVE-2026-76945
• cve — CVE-2026-69658

Entities