CVE-2003-0220

Exp

Buffer overflow in the administrator authentication process for Kerio Personal Firewall (KPF) 2.1.4 and earlier allows remote attackers to execute arbitrary code via a handshake packet.

Published: 2003-05-12 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2003-0220 is rated High Exploit Risk (74.7/100): CVSS High severity, with high exploitation likelihood (EPSS 80.50%, 99th percentile). 6 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2003-0220

EDB-ID Source Kind Published Link
16465 exploit_db edb 2010-06-15 Exploit-DB ↗
1537 exploit_db edb 2006-02-28 Exploit-DB ↗
28 exploit_db edb 2003-05-08 Exploit-DB ↗
22418 exploit_db edb 2003-04-30 Exploit-DB ↗
22417 exploit_db edb 2003-04-28 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2003-0220

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-18 85.49% 80.50% -4.99%
2 2025-04-30 81.80% 85.49% +3.69%
3 2025-03-30 — 81.80% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2003-0220

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2003-0220

Affected software / configurations for CVE-2003-0220

Vendor Product Version Raw CPE
kerio personal_firewall_2 2.1 cpe:2.3:a:kerio:personal_firewall_2:2.1:*:*:*:*:*:*:*
kerio personal_firewall_2 2.1.1 cpe:2.3:a:kerio:personal_firewall_2:2.1.1:*:*:*:*:*:*:*
kerio personal_firewall_2 2.1.2 cpe:2.3:a:kerio:personal_firewall_2:2.1.2:*:*:*:*:*:*:*
kerio personal_firewall_2 2.1.3 cpe:2.3:a:kerio:personal_firewall_2:2.1.3:*:*:*:*:*:*:*
kerio personal_firewall_2 2.1.4 cpe:2.3:a:kerio:personal_firewall_2:2.1.4:*:*:*:*:*:*:*

References for CVE-2003-0220

cvelogic Threat Intelligence