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CVE-2006-0042

17
FAUCET Score

CVE-2006-0042 describes an unspecified vulnerability in the apreq_parse_headers and apreq_parse_urlencoded functions within Apache2::Request (Libapreq2) versions prior to 2.07. This flaw allows remote attackers to trigger a denial of service by causing excessive CPU consumption due to quadratic computational complexity. With a CVSS score of 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P), it is a medium severity vulnerability, easily exploitable over the network without authentication, leading to a partial denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.07CPE matchmatch criteria
cpe:2.3:a:apache:libapreq2:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:*
3.1CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.23%
Probability of exploitation in next 30 days
EPSS Percentile
92.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0623 is in the 90th percentile among its peer group of 23,690 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

debianpatch availablevia nvd_reference
View patch

References

secunia.com / advisories/18846
PatchThird Party Advisory
secunia.com / advisories/19139
PatchThird Party Advisory
secunia.com / advisories/19658
Third Party Advisory
securityreason.com / securityalert/737
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/24917
Third Party AdvisoryVDB Entry
svn.apache.org / viewcvs.cgi/httpd/apreq/tags/v2_07/CHANGES
Vendor Advisory
debian.org / security/2006/dsa-1000
PatchThird Party Advisory
gentoo.org / security/en/glsa/glsa-200604-08.xml
Third Party Advisory
securityfocus.com / bid/16710
PatchThird Party AdvisoryVDB Entry
vupen.com / english/advisories/2006/0645
Third Party Advisory