CVE-2007-6422: Apache HTTP Server

Medium severity, CVSS 4.0. EPSS: 10% chance of exploitation in the next 30 days.

The balancer_handler function in mod_proxy_balancer in the Apache HTTP Server 2.2.0 through 2.2.6, when a threaded Multi-Processing Module is used, allows remote authenticated users to cause a denial of service (child process crash) via an invalid bb variable.

Affected products

• Apache HTTP Server: affected versions not specified; version 2.2 only; version 2.2.1 only; version 2.2.2 only; version 2.2.3 only; version 2.2.4 only; …

Published 2008-01-08. Last modified 2026-06-16.