CVE-2004-1658

CVE-2004-1658 is a medium-severity vulnerability in Kerio Personal Firewall with a CVSS 2.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Kerio Personal Firewall 4.0 (KPF4) allows local users with administrative privileges to bypass the Application Security feature and execute arbitrary processes by directly writing to \device\physicalmemory to restore the running kernel's SDT ServiceTable.

Frequently asked questions

What is CVE-2004-1658?
Kerio Personal Firewall 4.0 (KPF4) allows local users with administrative privileges to bypass the Application Security feature and execute arbitrary processes by directly writing to \device\physicalmemory to restore the running kernel's SDT ServiceTable.
How severe is CVE-2004-1658?
CVE-2004-1658 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2004-1658 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-1658?
CVE-2004-1658 primarily affects Kerio Personal Firewall. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-1658?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-1658 published?
CVE-2004-1658 was published on 2004-09-02 and last updated on 2026-06-16.

References

Affected products (6)

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