C5 Field Guideunofficial

OPS · Operations

OPS-29 Managing Vulnerabilities, Incidents and Crashes - Externally Sourced Components

1 sub-criterion

New in C5:2026

Basic criterion

OPS-29.01B

The cloud service provider designs, implements and maintains technical and organisational measures to manage updates to system components used to provide the cloud service that incorporate third-party or open-source libraries. This includes:

  1. Regularly identifying available updates and known vulnerabilities in third-party or open-source libraries used within applications;
  2. Evaluating the potential impact of identified updates and vulnerabilities on the applications and the overall security posture;
  3. Implementing necessary updates and patches in a timely manner to address identified vulnerabilities; and
  4. Continuously monitoring applications to ensure updates are effectively applied and no known or unmitigated vulnerabilities are introduced.

BSI text from C5:2026 and its changelog: © Federal Office for Information Security 2026, reproduced unchanged under CC BY-ND 4.0. Unofficial site, not affiliated with BSI. Licence and sources