CVE-2001-1033

Compaq TruCluster 1.5 allows remote attackers to cause a denial of service via a port scan from a system that does not have a DNS PTR record, which causes the cluster to enter a "split-brain" state.

Published: 2001-09-25 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2001-1033 is rated Moderate Risk (46.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.61%). Review affected assets and schedule 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-2001-1033

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 2026-06-15 0.74% 1.61% +0.88%
2 2025-03-30 0.76% 0.74% -0.03%
3 2025-03-29 — 0.76% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-1033

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-2001-1033

Affected software / configurations for CVE-2001-1033

Vendor Product Version Raw CPE
compaq trucluster 1.5 cpe:2.3:a:compaq:trucluster:1.5:*:*:*:*:*:*:*
compaq tru64 5.0 cpe:2.3:o:compaq:tru64:5.0:*:*:*:*:*:*:*
compaq tru64 5.1 cpe:2.3:o:compaq:tru64:5.1:*:*:*:*:*:*:*

References for CVE-2001-1033

cvelogic Threat Intelligence