CVE-2019-19866: Atos Unify Openscape Uc Web Client

High severity, CVSS 7.5. EPSS: 1.9% chance of exploitation in the next 30 days.

Atos Unify OpenScape UC Web Client V9 before version V9 R4.31.0 and V10 before version V10 R0.6.0 allows remote attackers to obtain sensitive information. By iterating the value of conferenceId to getMailFunction in the JSON API, one can enumerate all conferences scheduled on the platform, with their numbers and access PINs.

Affected products

• Atos Unify Openscape Uc Web Client: version 9.0 only; version 10.0 only

Published 2020-02-21. Last modified 2026-06-17.