CVE-2023-6269: Atos Unify Openscape Bcf

Critical severity, CVSS 9.8. EPSS: 1.9% chance of exploitation in the next 30 days.

An argument injection vulnerability has been identified in the administrative web interface of the Atos Unify OpenScape products "Session Border Controller" (SBC) and "Branch", before version V10 R3.4.0, and OpenScape "BCF" before versions V10R10.12.00 and V10R11.05.02. This allows an unauthenticated attacker to gain root access to the appliance via SSH (scope change) and also bypass authentication for the administrative interface and gain access as an arbitrary (administrative) user.

Affected products

• Atos Unify Openscape Bcf: from 10, before 10r10.12.00 (fixed in 10r10.12.00)
• Atos Unify Openscape Branch: from 10, before 10r3.4.0 (fixed in 10r3.4.0)
• Atos Unify Openscape Session Border Controller: from 10, before 10r3.4.0 (fixed in 10r3.4.0)

Published 2023-12-05. Last modified 2026-06-17.