CVE-2026-77977

HIGH 8.1

Ebyte NE2-D11 Missing Authentication for Critical Function

CVSS Score

8.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-306
Vendor	ebyte
Product	ebyte ne2-d11 firmware
Published	Aug 27, 2026

Stay Ahead of the Next One

Get instant alerts for ebyte ebyte ne2-d11 firmware

Be the first to know when new high vulnerabilities affecting ebyte ebyte ne2-d11 firmware are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

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

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

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.