CVE-2026-5267: Unauthenticated Event Stream Exposure of Session Tokens in Navigator NCS
Ciena · Navigator NCS
Affected: Ciena Navigator NCS · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 30% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Ciena · Navigator NCS7.2 and any older release; 7.2-P01 through 7.2-P07; 8.0; 8.0-P01 through 8.0-P06A; 8.1; 8.1-P01 through 8.1-P06 and 10 more
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Published
- September 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-5267 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.