Client-Managed Authentication Flaw in Ebyte Devices
CVE-2026-76945

8.7HIGH

Key Information:

Vendor

Ebyte

Status
Ebyte Ne2-d11 Firmware
Vendor
CVE Published:
27 August 2026

What is CVE-2026-76945?

The Ebyte device has a significant security flaw due to its reliance on client-managed authentication tokens, which lack adequate server-side validation. This weakness allows potential attackers to replay or manipulate these tokens, granting them unauthorized access to critical administrative functions. Organizations using affected Ebyte devices must assess their security measures and implement stricter validation protocols to prevent exploitation.

Affected Version(s)

Ebyte NE2-D11 Firmware FW-9167-0-11

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-2...
https://github.com/cisagov/CSAF/blob/develop/csaf_files/O...

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jithin Nambiar reported this vulnerability to CISA.
.