CVE-2026-5267

Ciena Navigator Network Control Suite NCS contains an information exposure vulnerability in an event-streaming API that does not properly enforce authentication. An unauthenticated attacker with network access to the affected service could access the event stream and potentially obtain sensitive...

CVE-2026-5267 Unauthenticated Event Stream Exposure of Session Tokens in Navigator NCS

Ciena Navigator Network Control Suite NCS contains an information exposure vulnerability in an event-streaming API that does not properly enforce authentication. An unauthenticated attacker with network access to the affected service could access the event stream and potentially obtain sensitive...

EUVD-2026-87295

Ciena Navigator Network Control Suite NCS contains an information exposure vulnerability in an event-streaming API that does not properly enforce authentication. An unauthenticated attacker with network access to the affected service could access the event stream and potentially obtain sensitive...

CVE-2026-5267 Unauthenticated Event Stream Exposure of Session Tokens in Navigator NCS

Ciena Navigator Network Control Suite NCS contains an information exposure vulnerability in an event-streaming API that does not properly enforce authentication. An unauthenticated attacker with network access to the affected service could access the event stream and potentially obtain sensitive...

CVE-2026-5267

The Ciena Navigator Network Control Suite (NCS) is affected by an information exposure vulnerability in its event-streaming API . The root cause is a failure to properly enforce authentication , which allows an unauthenticated attacker with network access to the affected service to access the eve...

CVE-2026-5267: Missing Authentication for Critical Function

Ciena Navigator Network Control Suite NCS contains an information exposure vulnerability in an event-streaming API that does not properly enforce authentication. An unauthenticated attacker with network access to the affected service could access the event stream and potentially obtain sensitive...

PT-2026-99097

Name of the Vulnerable Software and Affected Versions Ciena Navigator Network Control Suite NCS affected versions not specified Description An information exposure issue exists in an event-streaming API that fails to properly enforce authentication. An unauthenticated attacker with network access...

CVE-2026-5269

In Ciena's Navigator Network Control Suite NCS and Manage Control Plan MCP, there are hidden system accounts used for internal software operations. Some of these accounts have default passwords that may be predictable. While these accounts have very limited permissions on their own, an attacker...

CVE-2026-5269

Ciena's Navigator Network Control Suite (NCS) and Manage Control Plan (MCP) contain hidden system accounts used for internal software operations. These accounts may utilize predictable default passwords . Although these accounts possess limited permissions independently, an attacker could exploit...

CVE-2026-5269 Navigator NCS and MCP System Accounts with Default Passwords

In Ciena's Navigator Network Control Suite NCS and Manage Control Plan MCP, there are hidden system accounts used for internal software operations. Some of these accounts have default passwords that may be predictable. While these accounts have very limited permissions on their own, an attacker...

PT-2026-58865

An authentication bypass vulnerability exists in certain releases of Ciena Navigator Network Control Suite NCS, Manage Control Plan MCP, and Blue Planet products. The issue is caused by improper handling of HTTP request paths and headers, which allows an unauthenticated attacker to manipulate...

CVE-2026-5270: Improper Authentication

An authentication bypass vulnerability exists in certain releases of Ciena Navigator Network Control Suite NCS, Manage Control Plan MCP, and Blue Planet products. The issue is caused by improper handling of HTTP request paths and headers, which allows an unauthenticated attacker to manipulate...

PT-2026-58864

In Ciena's Navigator Network Control Suite NCS and Manage Control Plan MCP, there are hidden system accounts used for internal software operations. Some of these accounts have default passwords that may be predictable. While these accounts have very limited permissions on their own, an attacker...

CVE-2026-5269: Use of Default Password

In Ciena's Navigator Network Control Suite NCS and Manage Control Plan MCP, there are hidden system accounts used for internal software operations. Some of these accounts have default passwords that may be predictable. While these accounts have very limited permissions on their own, an attacker...