How severe is CVE-2013-3868?

CVE-2013-3868 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2013-3868 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 38% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-3868?

CVE-2013-3868 primarily affects Microsoft Active Directory Lightweight Directory Service. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-3868?

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

When was CVE-2013-3868 published?

CVE-2013-3868 was published on 2013-09-11 and last updated on 2026-06-16.

CVE-2013-3868

CVE-2013-3868 is a medium-severity vulnerability in Microsoft Active Directory Lightweight Directory Service with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 38% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 38% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Microsoft Active Directory Lightweight Directory Service
Published: 2013-09-11
Last modified: 2026-06-16

Description

Microsoft Active Directory Lightweight Directory Service (AD LDS) on Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, and Windows 8 and Active Directory Services on Windows Server 2008 SP2 and R2 SP1 and Server 2012 allow remote attackers to cause a denial of service (LDAP directory-service outage) via a crafted LDAP query, aka "Remote Anonymous DoS Vulnerability."

Frequently asked questions

What is CVE-2013-3868?: Microsoft Active Directory Lightweight Directory Service (AD LDS) on Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, and Windows 8 and Active Directory Services on Windows Server 2008 SP2 and R2 SP1 and Server 2012 allow remote attackers to cause a denial of service (LDAP directory-service outage) via a crafted LDAP query, aka "Remote Anonymous DoS Vulnerability."
How severe is CVE-2013-3868?: CVE-2013-3868 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2013-3868 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 38% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-3868?: CVE-2013-3868 primarily affects Microsoft Active Directory Lightweight Directory Service. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-3868?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-3868 published?: CVE-2013-3868 was published on 2013-09-11 and last updated on 2026-06-16.

References

Affected products (10)

cpe:2.3:a:microsoft:active_directory_lightweight_directory_service:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x86:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8:-:-:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8:-:-:x86:*:*:*:*:*
cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*

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