CVE-2002-0621

Buffer overflow in the Office Web Components (OWC) package installer used by Microsoft Commerce Server 2000 allows remote attackers to cause the process to fail or run arbitrary code in the LocalSystem security context via certain input to the OWC package installer.

Published: 2002-07-03 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2002-0621 is rated Moderate Risk (50.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 16.67%, 94th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2002-0621

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 2025-03-30 19.60% 16.67% -2.93%
2 2025-03-29 16.67% 19.60% +2.93%
3 2025-03-17 16.67%

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2002-0621

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/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:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 2.9 [email protected]

Weakness enumeration for CVE-2002-0621

Affected software / configurations for CVE-2002-0621

Vendor Product Version Raw CPE
microsoft commerce_server 2000 cpe:2.3:a:microsoft:commerce_server:2000:*:*:*:*:*:*:*
microsoft commerce_server 2000 cpe:2.3:a:microsoft:commerce_server:2000:sp1:*:*:*:*:*:*
microsoft commerce_server 2000 cpe:2.3:a:microsoft:commerce_server:2000:sp2:*:*:*:*:*:*

References for CVE-2002-0621

cvelogic Threat Intelligence