CVE-2003-1563

Sun Cluster 2.2 through 3.2 for Oracle Parallel Server / Real Application Clusters (OPS/RAC) allows local users to cause a denial of service (cluster node panic or abort) by launching a daemon listening on a TCP port that would otherwise be used by the Distributed Lock Manager (DLM), possibly involving this daemon responding in a manner that spoofs a cluster reconfiguration.

Published: 2003-12-31 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2003-1563 is rated Low Risk (23.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.06%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2003-1563

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 2023-03-07 0.95% 0.06% -0.89%
2 2022-02-04 0.95%

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2003-1563

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 2.0 MEDIUM
AV:L/AC:H/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
1.9 6.9 [email protected]

Weakness enumeration for CVE-2003-1563

Affected software / configurations for CVE-2003-1563

Vendor Product Version Raw CPE
sun cluster 2.2 cpe:2.3:a:sun:cluster:2.2:*:sparc:*:*:*:*:*
sun cluster 3.0 cpe:2.3:a:sun:cluster:3.0:*:sparc:*:*:*:*:*
sun cluster 3.1 cpe:2.3:a:sun:cluster:3.1:*:sparc:*:*:*:*:*
sun cluster 3.2 cpe:2.3:a:sun:cluster:3.2:*:sparc:*:*:*:*:*

References for CVE-2003-1563

cvelogic Threat Intelligence