How severe is CVE-2005-1063?

CVE-2005-1063 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2005-1063 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-1063?

CVE-2005-1063 primarily affects Kerio Kerio Mailserver. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-1063?

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

When was CVE-2005-1063 published?

CVE-2005-1063 was published on 2005-04-29 and last updated on 2026-06-16.

CVE-2005-1063

CVE-2005-1063 is a medium-severity vulnerability in Kerio Kerio Mailserver with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Kerio Kerio Mailserver
Published: 2005-04-29
Last modified: 2026-06-16

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."

Frequently asked questions

What is CVE-2005-1063?: 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."
How severe is CVE-2005-1063?: CVE-2005-1063 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2005-1063 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-1063?: CVE-2005-1063 primarily affects Kerio Kerio Mailserver. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-1063?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-1063 published?: CVE-2005-1063 was published on 2005-04-29 and last updated on 2026-06-16.

References

Affected products (25)

cpe:2.3:a:kerio:kerio_mailserver:6.0:*:*:*:*:*:*:*
cpe:2.3:a:kerio:kerio_mailserver:6.0.1:*:*:*:*:*:*:*
cpe:2.3:a:kerio:kerio_mailserver:6.0.2:*:*:*:*:*:*:*
cpe:2.3:a:kerio:kerio_mailserver:6.0.3:*:*:*:*:*:*:*
cpe:2.3:a:kerio:kerio_mailserver:6.0.4:*:*:*:*:*:*:*
cpe:2.3:a:kerio:kerio_mailserver:6.0.5:*:*:*:*:*:*:*
cpe:2.3:a:kerio:personal_firewall:4.0.6:*:*:*:*:*:*:*
cpe:2.3:a:kerio:personal_firewall:4.0.7:*:*:*:*:*:*:*
cpe:2.3:a:kerio:personal_firewall:4.0.8:*:*:*:*:*:*:*
cpe:2.3:a:kerio:personal_firewall:4.0.9:*:*:*:*:*:*:*
cpe:2.3:a:kerio:personal_firewall:4.0.10:*:*:*:*:*:*:*
cpe:2.3:a:kerio:personal_firewall:4.0.16:*:*:*:*:*:*:*
cpe:2.3:a:kerio:personal_firewall:4.1:*:*:*:*:*:*:*
cpe:2.3:a:kerio:personal_firewall:4.1.1:*:*:*:*:*:*:*
cpe:2.3:a:kerio:personal_firewall:4.1.2:*:*:*:*:*:*:*
cpe:2.3:a:kerio:winroute_firewall:6.0:*:*:*:*:*:*:*
cpe:2.3:a:kerio:winroute_firewall:6.0.1:*:*:*:*:*:*:*
cpe:2.3:a:kerio:winroute_firewall:6.0.2:*:*:*:*:*:*:*
cpe:2.3:a:kerio:winroute_firewall:6.0.3:*:*:*:*:*:*:*
cpe:2.3:a:kerio:winroute_firewall:6.0.4:*:*:*:*:*:*:*
cpe:2.3:a:kerio:winroute_firewall:6.0.5:*:*:*:*:*:*:*
cpe:2.3:a:kerio:winroute_firewall:6.0.6:*:*:*:*:*:*:*
cpe:2.3:a:kerio:winroute_firewall:6.0.7:*:*:*:*:*:*:*
cpe:2.3:a:kerio:winroute_firewall:6.0.8:*:*:*:*:*:*:*
cpe:2.3:a:kerio:winroute_firewall:6.0.9:*:*:*:*:*:*:*

More vulnerabilities in Kerio Kerio Mailserver

CVE-2008-0860 — Critical (CVSS 10.0): Unspecified vulnerability in the AVG plugin in Kerio MailServer before 6.5.0 has unspecified impact via unknown remote…
CVE-2007-3993 — Critical (CVSS 10.0): Unspecified vulnerability in the attachment filter in Kerio MailServer before 6.4.1 has unknown impact and remote…
CVE-2004-2441 — Critical (CVSS 10.0): Unspecified vulnerability in Kerio MailServer before 6.0.3 has unknown impact and unknown remote attack vectors,…
CVE-2006-1158 — High (CVSS 7.8): Kerio MailServer before 6.1.3 Patch 1 allows remote attackers to cause a denial of service (application crash) via a…
CVE-2008-0858 — High (CVSS 7.5): Buffer overflow in the Visnetic anti-virus plugin in Kerio MailServer before 6.5.0 might allow remote attackers to…
CVE-2005-1062 — High (CVSS 7.5): The administration protocol for Kerio WinRoute Firewall 6.x up to 6.0.10, Personal Firewall 4.x up to 4.1.2, and…

All CVEs affecting Kerio Kerio Mailserver →