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Vulnerability record · CVE-2005-1063 · published 29 April 2005

CVE-2005-1063: Kerio mailserver vulnerability

Kerio · Kerio Mailserver

The administration protocol for Kerio WinRoute Firewall 6.x up to 6.0.10, Personal Firewall 4.x up to 4.1.2, and MailServer up to 6.0.8 allows remote attackers to cause a denial of service (CPU consumption) via certain attacks that force the product to "compute unexpected conditions" and "perform cryptographic operations."

5.0 CVSS 2.0 Medium EPSS 1.6% · top 25.6%
5.0CVSS 2.0 base score
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

The administration protocol for Kerio WinRoute Firewall 6.x up to 6.0.10, Personal Firewall 4.x up to 4.1.2, and MailServer up to 6.0.8 allows remote attackers to cause a denial of service (CPU consumption) via certain attacks that force the product to "compute unexpected conditions" and "perform cryptographic operations."

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

Affected products

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

References

Track CVE-2005-1063 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Related vulnerabilities

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

10.0CVE-2008-0860Kerio avg plugin vulnerabilityUnspecified vulnerability in the AVG plugin in Kerio MailServer before 6.5.0 has unspecified impact via unknown remote attack vectors related to null…EPSS 1.5%10.0CVE-2007-3993Kerio mailserver vulnerabilityUnspecified vulnerability in the attachment filter in Kerio MailServer before 6.4.1 has unknown impact and remote attack vectors.EPSS 1.8%10.0CVE-2004-2441Kerio mailserver vulnerabilityUnspecified vulnerability in Kerio MailServer before 6.0.3 has unknown impact and unknown remote attack vectors, related to a "potential security iss…EPSS 1.7%7.8CVE-2006-1158Kerio mailserver vulnerabilityKerio MailServer before 6.1.3 Patch 1 allows remote attackers to cause a denial of service (application crash) via a crafted IMAP LOGIN command.EPSS 2.1%7.8CVE-2005-4425Kerio winroute firewall vulnerabilityUnspecified vulnerability in Kerio WinRoute Firewall before 6.1.3 allows remote attackers to cause a denial of service (crash) via certain RTSP strea…EPSS 1.8%7.5CVE-2008-0858Kerio mailserver code injection vulnerabilityBuffer overflow in the Visnetic anti-virus plugin in Kerio MailServer before 6.5.0 might allow remote attackers to execute arbitrary code via unspeci…EPSS 4.0%7.5CVE-2005-1062Kerio mailserver vulnerabilityThe administration protocol for Kerio WinRoute Firewall 6.x up to 6.0.10, Personal Firewall 4.x up to 4.1.2, and MailServer up to 6.0.8 allows remote…EPSS 2.6%7.5CVE-2003-1491Kerio personal firewall code injection vulnerabilityKerio Personal Firewall (KPF) 2.1.4 has a default rule to accept incoming packets from DNS (UDP port 53), which allows remote attackers to bypass the…EPSS 2.4%

Source: NIST National Vulnerability Database (record CVE-2005-1063), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.