CVE-2017-3169: Apache HTTP Server

Critical severity, CVSS 9.8. EPSS: 20% chance of exploitation in the next 30 days.

In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, mod_ssl may dereference a NULL pointer when third-party modules call ap_hook_process_connection() during an HTTP request to an HTTPS port.

Affected products

• Apache HTTP Server: version 2.2.0 only; version 2.2.2 only; version 2.2.3 only; version 2.2.11 only; version 2.2.12 only; version 2.2.13 only; …

Published 2017-06-20. Last modified 2026-06-17.