VULNERABILITY INTELLIGENCE

CVE-2020-24683

CVSS score9.8 CRITICAL
EPSS probability1.48%
CISA KEVNot currently listed
Published2020-12-22
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The affected versions of S+ Operations (version 2.1 SP1 and earlier) used an approach for user authentication which relies on validation at the client node (client-side authentication). This is not as secure as having the server validate a client application before allowing a connection. Therefore, if the network communication or endpoints for these applications are not protected, unauthorized actors can bypass authentication and make unauthorized connections to the server application.

Weakness classification

  • cybersecurity@ch.abb.com: CWE-305
  • nvd@nist.gov: CWE-669

Primary references