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CVE-2003-1563

13
FAUCET Score

CVE-2003-1563 describes a denial-of-service vulnerability affecting Sun Cluster versions 2.2 through 3.2, specifically when used with Oracle Parallel Server/Real Application Clusters. A local attacker can exploit this by launching a daemon on a TCP port reserved for the Distributed Lock Manager (DLM), potentially spoofing a cluster reconfiguration. This can lead to a cluster node panic or abort, resulting in a complete denial of service. The vulnerability has a CVSS score of 4.0, indicating a low attack complexity and requiring local access, but with a high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.2CPE matchmatch criteria
cpe:2.3:a:sun:cluster:2.2:*:sparc:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:a:sun:cluster:3.0:*:sparc:*:*:*:*:*
3.1CPE matchmatch criteria
cpe:2.3:a:sun:cluster:3.1:*:sparc:*:*:*:*:*
3.2CPE matchmatch criteria
cpe:2.3:a:sun:cluster:3.2:*:sparc:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

AV:L/AC:H/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
1.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.29%
Probability of exploitation in next 30 days
EPSS Percentile
20.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0029 is in the 13th percentile among its peer group of 1,595 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

sunsolve.sun.com / search/document.do
sunsolve.sun.com / search/document.do
auscert.org.au / render.html
US Government Resource
securityfocus.com / bid/9137