CVE-2007-5707

CVE-2007-5707 is a high-severity vulnerability in Openldap with a CVSS 2.0 base score of 7.1. 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-399.

Key facts

• Severity: High (CVSS 2.0 base score 7.1)
• EPSS exploit prediction: 4% (88th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-399
• Affected product: Openldap
• Published: 2007-10-30
• Last modified: 2026-06-16

Description

OpenLDAP before 2.3.39 allows remote attackers to cause a denial of service (slapd crash) via an LDAP request with a malformed objectClasses attribute. NOTE: this has been reported as a double free, but the reports are inconsistent.

Frequently asked questions

What is CVE-2007-5707?

OpenLDAP before 2.3.39 allows remote attackers to cause a denial of service (slapd crash) via an LDAP request with a malformed objectClasses attribute. NOTE: this has been reported as a double free, but the reports are inconsistent.

How severe is CVE-2007-5707?

CVE-2007-5707 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2007-5707 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-5707?

CVE-2007-5707 primarily affects Openldap. In total, 119 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-5707?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2007-5707 published?

CVE-2007-5707 was published on 2007-10-30 and last updated on 2026-06-16.

References

• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=440632
• http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
• http://secunia.com/advisories/27424
• http://secunia.com/advisories/27587
• http://secunia.com/advisories/27596
• http://secunia.com/advisories/27683
• http://secunia.com/advisories/27756
• http://secunia.com/advisories/27868
• http://secunia.com/advisories/29461
• http://secunia.com/advisories/29682
• http://security.gentoo.org/glsa/glsa-200803-28.xml
• http://support.apple.com/kb/HT3937
• http://www.debian.org/security/2008/dsa-1541
• http://www.mandriva.com/security/advisories?name=MDKSA-2007:215
• http://www.novell.com/linux/security/advisories/2007_24_sr.html
• http://www.openldap.org/its/index.cgi/Software%20Bugs?id=5119
• http://www.openldap.org/lists/openldap-announce/200710/msg00001.html
• http://www.redhat.com/archives/fedora-package-announce/2007-November/msg00460.html
• http://www.redhat.com/support/errata/RHSA-2007-1037.html
• http://www.redhat.com/support/errata/RHSA-2007-1038.html
• http://www.securityfocus.com/bid/26245
• http://www.securitytracker.com/id?1018924
• http://www.ubuntu.com/usn/usn-551-1
• http://www.vupen.com/english/advisories/2007/3645
• http://www.vupen.com/english/advisories/2009/3184
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10183

Affected products (119)

• cpe:2.3:a:openldap:openldap:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.1:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.1.4:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.4:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.5:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.6:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.7:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.8:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.9:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.10:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.11:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.12:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:1.2.13:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.10:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.11:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.11_9:*:*:*:*:*:*:*
• cpe:2.3:a:openldap:openldap:2.0.11_11:*:*:*:*:*:*:*

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