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Case File

CVE-2009-1891

HIGH · CVSS 7.1 EPSS 17.11%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-07-10 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.1. It affects Apache. Its EPSS score suggests a 17.1% probability of exploitation in the next 30 days. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2009-1891
Severity
HIGH
CVSS
7.1
EPSS
17.11%
Apache

Original NVD 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).