CVE-2008-0859

CVE-2008-0859 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. The underlying weakness is classified as CWE-399.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 1% (70th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-399
• Affected product: Kerio Kerio Mailserver
• Published: 2008-02-21
• Last modified: 2026-06-16

Description

Unspecified vulnerability in Kerio MailServer before 6.5.0 allows remote attackers to cause a denial of service (crash) via unspecified vectors related to decoding of uuencoded input, which triggers memory corruption.

Frequently asked questions

What is CVE-2008-0859?

Unspecified vulnerability in Kerio MailServer before 6.5.0 allows remote attackers to cause a denial of service (crash) via unspecified vectors related to decoding of uuencoded input, which triggers memory corruption.

How severe is CVE-2008-0859?

CVE-2008-0859 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2008-0859 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-0859?

CVE-2008-0859 primarily affects Kerio Kerio Mailserver. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-0859?

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

When was CVE-2008-0859 published?

CVE-2008-0859 was published on 2008-02-21 and last updated on 2026-06-16.

References

• http://secunia.com/advisories/29021
• http://www.kerio.com/kms_history.html
• http://www.securityfocus.com/bid/27868
• http://www.securitytracker.com/id?1019428
• http://www.vupen.com/english/advisories/2008/0594

Affected products (30)

• cpe:2.3:a:kerio:kerio_mailserver:5.0:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.1:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.6.3:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.6.4:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.6.5:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.7.0:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.7.3:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.7.4:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.7.5:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.7.6:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.7.7:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.7.8:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.7.9:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:5.7.10:*:*:*:*:*:*:*
• 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:6.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:6.0.10:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:6.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:6.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:6.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:6.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:6.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:kerio:kerio_mailserver:6.4.2:*:*:*:*:*:*:*

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…

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Other CWE-399 (Resource Management Errors) vulnerabilities

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• CVE-2015-0339 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
• CVE-2015-0335 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
• CVE-2015-0333 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
• CVE-2014-4121 — Critical (CVSS 10.0): Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized…
• CVE-2014-0560 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.12 and 11.x before 11.0.09 on Windows and OS…

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