VULNERABILITY INTELLIGENCE

CVE-2009-3663

CVSS score10 HIGH
EPSS probability14.63%
CISA KEVNot currently listed
Published2009-10-11
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:C/I:C/A:C

Description

Format string vulnerability in the h_readrequest function in http.c in httpdx Web Server 1.4 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via format string specifiers in the Host header.

Weakness classification

  • CWE-134: Use of Externally-Controlled Format String

Primary references