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Vulnerability record · CVE-2013-7039 · published 13 December 2013

CVE-2013-7039: Gnu libmicrohttpd memory buffer overflow vulnerability

Gnu · Libmicrohttpd

Stack-based buffer overflow in the MHD_digest_auth_check function in libmicrohttpd before 0.9.32, when MHD_OPTION_CONNECTION_MEMORY_LIMIT is set to a large value, allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long URI in an authentication header.

5.1 CVSS 2.0 Medium EPSS 3.3% · top 12.0% CWE-119 · Memory buffer overflow
5.1CVSS 2.0 base score
3.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
14References
17 Jun 2026Last modified by NVD

Description

Stack-based buffer overflow in the MHD_digest_auth_check function in libmicrohttpd before 0.9.32, when MHD_OPTION_CONNECTION_MEMORY_LIMIT is set to a large value, allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long URI in an authentication header.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://secunia.com/advisories/55903 Vendor Advisory
http://security.gentoo.org/glsa/glsa-201402-01.xml
http://www.openwall.com/lists/oss-security/2013/12/09/11
http://www.securityfocus.com/bid/64138
https://bugs.gentoo.org/show_bug.cgi?id=493450
https://bugzilla.redhat.com/show_bug.cgi?id=1039390
https://gnunet.org/svn/libmicrohttpd/ChangeLog
http://secunia.com/advisories/55903 Vendor Advisory
http://security.gentoo.org/glsa/glsa-201402-01.xml
http://www.openwall.com/lists/oss-security/2013/12/09/11
http://www.securityfocus.com/bid/64138
https://bugs.gentoo.org/show_bug.cgi?id=493450
https://bugzilla.redhat.com/show_bug.cgi?id=1039390
https://gnunet.org/svn/libmicrohttpd/ChangeLog

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2013-7039), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.