CVE-2026-5267

HighCVSS 7.5/10Last modified Sep 28, 2026

Description

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 information.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-306

Affected software

No affected versions have been published.

Timeline

Published: Sep 25, 2026
Last modified: Sep 28, 2026
NVD status: Deferred

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