CVE-2026-5268

9.1 CRITICAL
Published: July 06, 2026 Modified: July 06, 2026
View on NVD

Description

An authentication bypass vulnerability exists in the default SFTP server component utilized across the Ciena products listed. This vulnerability allows a remote, unauthenticated attacker to bypass security controls and gain unauthorized access to the underlying filesystem. Successful exploitation could allow an attacker to read or modify system files.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://www.ciena.com/product-security
Source: 7bd90cf1-1651-495e-9ae8-9415fb3c9feb

1 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.1 / 10.0
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)