Is CVE-2007-3847 being actively exploited?

CVE-2007-3847 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2007-3847?

CVE-2007-3847 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2007-3847

MEDIUM · CVSS 5.0EPSS 12.9%EU EUVD

The date handling code in modules/proxy/proxy_util.c (mod_proxy) in Apache 2.3.0, when using a threaded MPM, allows remote origin servers to cause a denial of service (caching forward proxy process crash) via crafted date headers that trigger a buffer over-read.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-125
EPSS score: 12.9% (96th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2007-3831)
Published: August 23, 2007
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2007-3831 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

apache / http server
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
fedoraproject / fedora
fedoraproject / fedora core

References

http://bugs.gentoo.org/show_bug.cgi?id=186219(Issue Tracking, Third Party Advisory)
http://docs.info.apple.com/article.html?artnum=307562(Broken Link)
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01182588(Broken Link)
http://httpd.apache.org/security/vulnerabilities_20.html(Vendor Advisory)
http://httpd.apache.org/security/vulnerabilities_22.html(Vendor Advisory)
http://lists.apple.com/archives/security-announce/2008//May/msg00001.html(Mailing List)
http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html(Mailing List)
http://lists.vmware.com/pipermail/security-announce/2009/000062.html(Mailing List, Third Party Advisory)
http://marc.info/?l=apache-cvs&m=118592992309395&w=2(Issue Tracking, Mailing List, Third Party Advisory)
http://marc.info/?l=apache-httpd-dev&m=118595556504202&w=2(Issue Tracking, Mailing List, Third Party Advisory)
http://marc.info/?l=apache-httpd-dev&m=118595953217856&w=2(Issue Tracking, Mailing List, Third Party Advisory)
http://secunia.com/advisories/26636(Not Applicable)
http://secunia.com/advisories/26722(Not Applicable)
http://secunia.com/advisories/26790(Not Applicable)
http://secunia.com/advisories/26842(Not Applicable)
http://secunia.com/advisories/26952(Not Applicable)
http://secunia.com/advisories/26993(Not Applicable)
http://secunia.com/advisories/27209(Not Applicable)
http://secunia.com/advisories/27563(Not Applicable)
http://secunia.com/advisories/27593(Not Applicable)
http://secunia.com/advisories/27732(Not Applicable)
http://secunia.com/advisories/27882(Not Applicable)
http://secunia.com/advisories/27971(Not Applicable)
http://secunia.com/advisories/28467(Not Applicable)
http://secunia.com/advisories/28606(Not Applicable)
http://secunia.com/advisories/28749(Not Applicable)
http://secunia.com/advisories/28922(Not Applicable)
http://secunia.com/advisories/29420(Not Applicable)
http://secunia.com/advisories/30430(Not Applicable)
http://security.gentoo.org/glsa/glsa-200711-06.xml(Third Party Advisory)
http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.595748(Third Party Advisory)
http://support.avaya.com/elmodocs2/security/ASA-2007-500.htm(Third Party Advisory)
http://www-1.ibm.com/support/docview.wss?rs=180&uid=swg27007951(Third Party Advisory)
http://www-1.ibm.com/support/docview.wss?uid=swg1PK50469(Third Party Advisory)
http://www-1.ibm.com/support/docview.wss?uid=swg1PK52702(Third Party Advisory)
http://www.fujitsu.com/global/support/software/security/products-f/interstage-200802e.html(Third Party Advisory)
http://www.mandriva.com/security/advisories?name=MDKSA-2007:235(Broken Link)
http://www.novell.com/linux/security/advisories/2007_61_apache2.html(Broken Link)
http://www.oracle.com/technetwork/topics/security/cpujuly2013-1899826.html(Third Party Advisory)
http://www.redhat.com/archives/fedora-package-announce/2007-September/msg00320.html(Mailing List, Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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