CVE-2026-77977
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Summary
Ebyte gateway product's vendor configuration utility does not require authentication before allowing certain disruptive administrative actions when default credentials remain configured. An unauthenticated attacker on the adjacent network could reboot the device or restore factory settings, resulting in a loss of configuration and service availability.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Ebyte | Ebyte NE2-D11 Firmware | FW-9167-0-11 | affected |
Weaknesses
- CWE-306: CWE-306
Workarounds
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.
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-237-06
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-237-06.json
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