Is CVE-2013-6438 being actively exploited?

CVE-2013-6438 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-6438?

CVE-2013-6438 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2013-6438

MEDIUM · CVSS 5.0EPSS 27.5%EU EUVD

The dav_xml_get_cdata function in main/util.c in the mod_dav module in the Apache HTTP Server before 2.4.8 does not properly remove whitespace characters from CDATA sections, which allows remote attackers to cause a denial of service (daemon crash) via a crafted DAV WRITE request.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS score: 27.5% (98th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-6247)
Published: March 18, 2014
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-6247 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

apache / http server
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
oracle / http server
oracle / http server
oracle / http server
oracle / http server

References

http://advisories.mageia.org/MGASA-2014-0135.html(Third Party Advisory)
http://archives.neohapsis.com/archives/bugtraq/2014-10/0101.html(Broken Link)
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10698(Third Party Advisory)
http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html(Broken Link, Mailing List)
http://marc.info/?l=bugtraq&m=141017844705317&w=2(Issue Tracking, Mailing List, Third Party Advisory)
http://marc.info/?l=bugtraq&m=141390017113542&w=2(Issue Tracking, Mailing List, Third Party Advisory)
http://seclists.org/fulldisclosure/2014/Dec/23(Mailing List, Third Party Advisory)
http://secunia.com/advisories/58230(Not Applicable)
http://secunia.com/advisories/59315(Not Applicable)
http://secunia.com/advisories/59345(Not Applicable)
http://secunia.com/advisories/60536(Not Applicable)
http://security.gentoo.org/glsa/glsa-201408-12.xml(Third Party Advisory)
http://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x/CHANGES(Vendor Advisory)
http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/dav/main/util.c(Vendor Advisory)
http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/dav/main/util.c?r1=1528718&r2=1556428&diff_format=h(Patch, Vendor Advisory)
http://www-01.ibm.com/support/docview.wss?uid=swg21669554(Third Party Advisory)
http://www-01.ibm.com/support/docview.wss?uid=swg21676091(Third Party Advisory)
http://www-01.ibm.com/support/docview.wss?uid=swg21676092(Third Party Advisory)
http://www.apache.org/dist/httpd/CHANGES_2.4.9(Vendor Advisory)
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html(Third Party Advisory)
http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html(Third Party Advisory)
http://www.securityfocus.com/archive/1/534161/100/0/threaded(Third Party Advisory, VDB Entry)
http://www.securityfocus.com/bid/66303(Third Party Advisory, VDB Entry)
http://www.ubuntu.com/usn/USN-2152-1(Third Party Advisory)
http://www.vmware.com/security/advisories/VMSA-2014-0012.html(Third Party Advisory)
https://blogs.oracle.com/sunsecurity/entry/multiple_input_validation_vulnerabilities_in1(Third Party Advisory)
https://httpd.apache.org/security/vulnerabilities_24.html(Vendor Advisory)
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r83109088737656fa6307bd99ab40f8ff0269ae58d3f7272d7048494a%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9821b0a32a1d0a1b4947abb6f3630053fcbb2ec905d9a32c2bd4d4ee%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/ra7f6aeb28661fbf826969526585f16856abc4615877875f9d3b35ef4%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E

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

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