CVE-2003-0464

The RPC code in Linux kernel 2.4 sets the reuse flag when sockets are created, which could allow local users to bind to UDP ports that are used by privileged services such as nfsd.

Published: 2003-08-27 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2003-0464 is rated Low Risk (29.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.38%). 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-2003-0464

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 0.06% 0.38% +0.32%
2 2025-03-17 0.04% 0.06% +0.02%
3 2023-03-07 — 0.04% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2003-0464

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
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.
 3.9 6.4 [email protected]

Weakness enumeration for CVE-2003-0464

OS Trackers for CVE-2003-0464

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2003-0464
ubuntu medium CVE-2003-0464 medium priority: Ubuntu including 1 source packages (kernel-source-2.4.27), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 2, DNE 1, needs-triage 1. https://ubuntu.com/security/CVE-2003-0464

Affected software / configurations for CVE-2003-0464

Vendor Product Version Raw CPE
redhat linux 7.1 cpe:2.3:o:redhat:linux:7.1:*:*:*:*:*:*:*
redhat linux 7.2 cpe:2.3:o:redhat:linux:7.2:*:*:*:*:*:*:*
redhat linux 7.3 cpe:2.3:o:redhat:linux:7.3:*:*:*:*:*:*:*
redhat linux 8.0 cpe:2.3:o:redhat:linux:8.0:*:*:*:*:*:*:*
redhat linux 9.0 cpe:2.3:o:redhat:linux:9.0:*:*:*:*:*:*:*

References for CVE-2003-0464

cvelogic Threat Intelligence