https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-04T04:43:44.720498+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/fkie_cve-2002-1558 fkie_cve-2002-1558 2026-10-04T04:43:44.772180+00:00

Cisco ONS15454 and ONS15327 running ONS before 3.4 have an account for the VxWorks Operating System in the TCC, TCC+ and XTC that cannot be changed or disabled, which allows remote attackers to gain privileges by connecting to the account via Telnet.

 https://vulnerability.circl.lu/vuln/ghsa-xf47-834w-q9wp GHSA-xf47-834w-q9wp 2026-10-04T04:43:44.772251+00:00

Cisco ONS15454 and ONS15327 running ONS before 3.4 have an account for the VxWorks Operating System in the TCC, TCC+ and XTC that cannot be changed or disabled, which allows remote attackers to gain privileges by connecting to the account via Telnet.

 https://vulnerability.circl.lu/vuln/gsd-2002-1558 gsd-2002-1558 2026-10-04T04:43:44.772277+00:00 gsd-2002-1558 https://vulnerability.circl.lu/vuln/var-200303-0053 VAR-200303-0053 2026-10-04T04:43:44.772294+00:00

Cisco ONS15454 and ONS15327 running ONS before 3.4 have an account for the VxWorks Operating System in the TCC, TCC+ and XTC that cannot be changed or disabled, which allows remote attackers to gain privileges by connecting to the account via Telnet. Cisco ONS15454 and Cisco ONS15327 are optical fiber network platforms developed by CISCO.

Cisco ONS 15454 and Cisco ONS 15327 devices have default accounts. Remote attackers can use this vulnerability to gain unauthorized access and take complete control of the device.

TCC, TCC + and XTC contain a default username and password. This account can be used to access the VxWorks operating system, and this account cannot be changed or closed. Using this account, an attacker can remotely access through the Telnet service and take complete control of the device.

The vulnerability CISCO BUG ID is: CSCdy70756