How severe is CVE-2013-7039?

CVE-2013-7039 has a CVSS 2.0 base score of 5.1, rated medium severity.

Is CVE-2013-7039 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-7039?

CVE-2013-7039 primarily affects Gnu Libmicrohttpd. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-7039?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-7039 published?

CVE-2013-7039 was published on 2013-12-13 and last updated on 2026-06-17.

CVE-2013-7039

CVE-2013-7039 is a medium-severity vulnerability in Gnu Libmicrohttpd with a CVSS 2.0 base score of 5.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 2.0 base score 5.1)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Gnu Libmicrohttpd
Published: 2013-12-13
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2013-7039?: 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.
How severe is CVE-2013-7039?: CVE-2013-7039 has a CVSS 2.0 base score of 5.1, rated medium severity.
Is CVE-2013-7039 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-7039?: CVE-2013-7039 primarily affects Gnu Libmicrohttpd. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-7039?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-7039 published?: CVE-2013-7039 was published on 2013-12-13 and last updated on 2026-06-17.

References

Affected products (16)

cpe:2.3:a:gnu:libmicrohttpd:*:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.16:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.17:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.18:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.19:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.20:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.21:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.22:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.23:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.24:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.25:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.26:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.27:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.28:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.29:*:*:*:*:*:*:*
cpe:2.3:a:gnu:libmicrohttpd:0.9.30:*:*:*:*:*:*:*

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