CVE-2016-1983: Privoxy

High severity, CVSS 7.5. EPSS: 2.9% chance of exploitation in the next 30 days.

The client_host function in parsers.c in Privoxy before 3.0.24 allows remote attackers to cause a denial of service (invalid read and crash) via an empty HTTP Host header.

Affected products

• Privoxy Privoxy: up to and including 3.0.23

Published 2016-01-27. Last modified 2026-06-17.