VULNERABILITY INTELLIGENCE

CVE-2009-1891

CVSS score7.1 HIGH
EPSS probability17.11%
CISA KEVNot currently listed
Published2009-07-10
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:N/I:N/A:C

Description

The mod_deflate module in Apache httpd 2.2.11 and earlier compresses large files until completion even after the associated network connection is closed, which allows remote attackers to cause a denial of service (CPU consumption).

Weakness classification

  • CWE-400: Uncontrolled Resource Consumption

Primary references