← All CVEs

CVE-2026-5269

critical · 9.8

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 could combine an attack using one of these accounts with other potential weaknesses to launch a more significant attack, possibly leading to escalation of privilege on the system.

9.8
CVSS
0.5%
EPSS (exploit prob.)
41st
EPSS percentile
2026-07-14
Published

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

Weaknesses

CWE-1393

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-5269