Is CVE-2007-6422 in the CISA KEV catalog?

No. CVE-2007-6422 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2007-6422?

CVE-2007-6422 has a CVSS v2 base score of 4.0 (MEDIUM).

What is the EPSS score for CVE-2007-6422?

CVE-2007-6422 has an EPSS score of 9.95% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2007-6422?

Upgrade apache2 on debian 11 to 2.2.8-1 or later.

CVE & CISA-KEV Catalog

CVE-2007-6422

MEDIUMEPSS 95th pctl

4.0

CVSS v2

NVD

Description

The balancer_handler function in mod_proxy_balancer in the Apache HTTP Server 2.2.0 through 2.2.6, when a threaded Multi-Processing Module is used, allows remote authenticated users to cause a denial of service (child process crash) via an invalid bb variable.

CWE-399Resource Management Errors

How to fix

Remediation Available

apache2Debian

Fixed in:2.2.8-1CVE-2007-6422

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

9.95%probability of exploitation in 30 days

95thpercentile

Very high risk: more likely to be exploited than 95% of all known CVEs.

References

Related Vulnerabilities

Other CWE-399 (Resource Management Errors) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2009-3103	High	10.0	90%	-	-
CVE-2009-0075	High	9.3	85%	-	-
CVE-2005-1790	Low	2.6	83%	-	-
CVE-2010-0806	High	8.8	82%	KEV	-
CVE-2009-2526	High	7.8	82%	-	-
CVE-2015-1868	High	7.8	82%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.