CVE-2026-5270
An authentication bypass vulnerability exists in certain releases of Ciena Navigator Network Control Suite (NCS), Manage Control Plan (MCP),
CVSS
9.8
Crítico
EPSS
0.5%
p36
KEV
—
Exploit Today
11
0-100
Publicado: 14 jul 2026 · Última mod.: 15 jul 2026 · CWE-287
0.2%EPSS · 30 días0.5%
2026-07-152026-07-18
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 requests in a manner that bypasses authentication and associated audit logging controls.
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