How severe is CVE-2006-1158?

CVE-2006-1158 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2006-1158 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-1158?

CVE-2006-1158 primarily affects Kerio Kerio Mailserver. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-1158?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2006-1158 published?

CVE-2006-1158 was published on 2006-03-12 and last updated on 2026-06-16.

CVE-2006-1158

CVE-2006-1158 is a high-severity vulnerability in Kerio Kerio Mailserver with a CVSS 2.0 base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Kerio Kerio Mailserver
Published: 2006-03-12
Last modified: 2026-06-16

Description

Kerio MailServer before 6.1.3 Patch 1 allows remote attackers to cause a denial of service (application crash) via a crafted IMAP LOGIN command.

Frequently asked questions

What is CVE-2006-1158?: Kerio MailServer before 6.1.3 Patch 1 allows remote attackers to cause a denial of service (application crash) via a crafted IMAP LOGIN command.
How severe is CVE-2006-1158?: CVE-2006-1158 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2006-1158 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-1158?: CVE-2006-1158 primarily affects Kerio Kerio Mailserver. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-1158?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2006-1158 published?: CVE-2006-1158 was published on 2006-03-12 and last updated on 2026-06-16.

References

Affected products (24)

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:6.0.0:*:*:*:*:*:*:*
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:kerio_mailserver:6.0.6:*:*:*:*:*:*:*
cpe:2.3:a:kerio:kerio_mailserver:6.0.7:*:*:*:*:*:*:*
cpe:2.3:a:kerio:kerio_mailserver:6.0.8:*:*:*:*:*:*:*
cpe:2.3:a:kerio:kerio_mailserver:6.1.3_patch_1:*:*:*:*:*:*:*

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