CVE-2019-20047: Al-Enterprise Omnivista 4760

High severity, CVSS 7.5. EPSS: 2.7% chance of exploitation in the next 30 days.

An issue was discovered on Alcatel-Lucent OmniVista 4760 devices, and 8770 devices before 4.1.2. An incorrect web server configuration allows a remote unauthenticated attacker to retrieve the content of its own session files. Every session file contains the administrative LDAP credentials encoded in a reversible format. Sessions are stored in /sessions/sess_<sessionid>.

Affected products

• Al-Enterprise Omnivista 4760: any version
• Al-Enterprise Omnivista 8770: before 4.1.12 (fixed in 4.1.12)

Published 2019-12-27. Last modified 2026-06-17.