CPL vulnerabilities

1 known vulnerability in CPL from CIENA. 1 is rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 9.1 Critical severity

  6500 S-Series: Authentication Bypass Using an Alternate Path or Channel

  CVE-2026-5268Jul 6, 2026CIENA

  An authentication bypass vulnerability exists in the default SFTP server component utilized across the Ciena products listed. This vulnerability allows a remote, unauthenticated attacker to bypass security controls and gain unauthorized access to the underlyin