CVE-2004-1023

CVE-2004-1023 is a low-severity vulnerability in Kerio Kerio Mailserver with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Kerio Winroute Firewall before 6.0.9, ServerFirewall before 1.0.1, and MailServer before 6.0.5, when installed on Windows based systems, do not modify the ACLs for critical files, which allows local users with Power Users privileges to modify programs, install malicious DLLs in the plug-ins folder, and modify XML files related to configuration.

Frequently asked questions

What is CVE-2004-1023?
Kerio Winroute Firewall before 6.0.9, ServerFirewall before 1.0.1, and MailServer before 6.0.5, when installed on Windows based systems, do not modify the ACLs for critical files, which allows local users with Power Users privileges to modify programs, install malicious DLLs in the plug-ins folder, and modify XML files related to configuration.
How severe is CVE-2004-1023?
CVE-2004-1023 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-2004-1023 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-1023?
CVE-2004-1023 primarily affects Kerio Kerio Mailserver. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-1023?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-1023 published?
CVE-2004-1023 was published on 2005-01-10 and last updated on 2026-06-16.

References

Affected products (15)

More vulnerabilities in Kerio Kerio Mailserver

All CVEs affecting Kerio Kerio Mailserver →