CVE-2006-6554: n/a vulnerability

CVE-2006-6554: Unspecified vulnerability in Kerio MailServer before 6.3.1 allows remote attackers to cause a denial of ser...

Unspecified vulnerability in Kerio MailServer before 6.3.1 allows remote attackers to cause a denial of service (segmentation fault and service stop) via certain long LDAP queries, as demonstrated by vd_kms6.pm.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 20:33 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2006-6554 is a remote denial-of-service issue in Kerio MailServer before 6.3.1. Long LDAP queries can crash the service, causing mail availability disruption. The source bundle does not show data theft, code execution, or active exploitation evidence. Exposure is most likely limited to legacy Kerio MailServer deployments running versions earlier than 6.3.1, especially where LDAP-related services are reachable by untrusted networks. Treat this as a legacy availability risk. It is not evidenced as active exploitation, but exposed old mail servers could be remotely crashed and disrupt business email. Mitigation focus: Inventory any Kerio MailServer deployments and confirm exact versions.; Upgrade affected systems to Kerio MailServer 6.3.1 or later where applicable.; Restrict untrusted network access to exposed LDAP-related mail services..

Prepared: Jun 29, 2026, 08:45 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 14, 2006, 18:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
keriomailserver-ldap-dos(30872)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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