CVE-2003-0001

Exp

Multiple ethernet Network Interface Card (NIC) device drivers do not pad frames with null bytes, which allows remote attackers to obtain information from previous packets or kernel memory by using malformed packets, as demonstrated by Etherleak.

Published: 2003-01-17 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2003-0001 is rated High Exploit Risk (67.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.32%). 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.19% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2003-0001

EDB-ID Source Kind Published Link
26076 exploit_db edb 2013-06-10 Exploit-DB ↗
3555 exploit_db edb 2007-03-23 Exploit-DB ↗
22131 exploit_db edb 2007-03-23 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2003-0001

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 2026-06-03 3.12% 4.32% +1.19%
2 2026-05-17 3.43% 3.12% -0.31%
3 2026-03-18 — 3.43% —

Full EPSS history (25 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2003-0001

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:P/I:N/A:N 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:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2003-0001

OS Trackers for CVE-2003-0001

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2003-0001
ubuntu medium CVE-2003-0001 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-2003-0001

Affected software / configurations for CVE-2003-0001

Vendor Product Version Raw CPE
freebsd freebsd 4.2 cpe:2.3:o:freebsd:freebsd:4.2:*:*:*:*:*:*:*
freebsd freebsd 4.3 cpe:2.3:o:freebsd:freebsd:4.3:*:*:*:*:*:*:*
freebsd freebsd 4.4 cpe:2.3:o:freebsd:freebsd:4.4:*:*:*:*:*:*:*
freebsd freebsd 4.5 cpe:2.3:o:freebsd:freebsd:4.5:*:*:*:*:*:*:*
freebsd freebsd 4.6 cpe:2.3:o:freebsd:freebsd:4.6:*:*:*:*:*:*:*
freebsd freebsd 4.7 cpe:2.3:o:freebsd:freebsd:4.7:*:*:*:*:*:*:*
linux linux_kernel 2.4.1 cpe:2.3:o:linux:linux_kernel:2.4.1:*:*:*:*:*:*:*
linux linux_kernel 2.4.2 cpe:2.3:o:linux:linux_kernel:2.4.2:*:*:*:*:*:*:*
linux linux_kernel 2.4.3 cpe:2.3:o:linux:linux_kernel:2.4.3:*:*:*:*:*:*:*
linux linux_kernel 2.4.4 cpe:2.3:o:linux:linux_kernel:2.4.4:*:*:*:*:*:*:*
linux linux_kernel 2.4.5 cpe:2.3:o:linux:linux_kernel:2.4.5:*:*:*:*:*:*:*
linux linux_kernel 2.4.6 cpe:2.3:o:linux:linux_kernel:2.4.6:*:*:*:*:*:*:*
linux linux_kernel 2.4.7 cpe:2.3:o:linux:linux_kernel:2.4.7:*:*:*:*:*:*:*
linux linux_kernel 2.4.8 cpe:2.3:o:linux:linux_kernel:2.4.8:*:*:*:*:*:*:*
linux linux_kernel 2.4.9 cpe:2.3:o:linux:linux_kernel:2.4.9:*:*:*:*:*:*:*
linux linux_kernel 2.4.10 cpe:2.3:o:linux:linux_kernel:2.4.10:*:*:*:*:*:*:*
linux linux_kernel 2.4.11 cpe:2.3:o:linux:linux_kernel:2.4.11:*:*:*:*:*:*:*
linux linux_kernel 2.4.12 cpe:2.3:o:linux:linux_kernel:2.4.12:*:*:*:*:*:*:*
linux linux_kernel 2.4.13 cpe:2.3:o:linux:linux_kernel:2.4.13:*:*:*:*:*:*:*
linux linux_kernel 2.4.14 cpe:2.3:o:linux:linux_kernel:2.4.14:*:*:*:*:*:*:*
linux linux_kernel 2.4.15 cpe:2.3:o:linux:linux_kernel:2.4.15:*:*:*:*:*:*:*
linux linux_kernel 2.4.16 cpe:2.3:o:linux:linux_kernel:2.4.16:*:*:*:*:*:*:*
linux linux_kernel 2.4.17 cpe:2.3:o:linux:linux_kernel:2.4.17:*:*:*:*:*:*:*
linux linux_kernel 2.4.18 cpe:2.3:o:linux:linux_kernel:2.4.18:*:*:*:*:*:*:*
linux linux_kernel 2.4.19 cpe:2.3:o:linux:linux_kernel:2.4.19:*:*:*:*:*:*:*
linux linux_kernel 2.4.20 cpe:2.3:o:linux:linux_kernel:2.4.20:*:*:*:*:*:*:*
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:*
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:*
microsoft windows_2000_terminal_services — cpe:2.3:o:microsoft:windows_2000_terminal_services:*:*:*:*:*:*:*:*
microsoft windows_2000_terminal_services — cpe:2.3:o:microsoft:windows_2000_terminal_services:*:sp1:*:*:*:*:*:*
microsoft windows_2000_terminal_services — cpe:2.3:o:microsoft:windows_2000_terminal_services:*:sp2:*:*:*:*:*:*
netbsd netbsd 1.5 cpe:2.3:o:netbsd:netbsd:1.5:*:*:*:*:*:*:*
netbsd netbsd 1.5.1 cpe:2.3:o:netbsd:netbsd:1.5.1:*:*:*:*:*:*:*
netbsd netbsd 1.5.2 cpe:2.3:o:netbsd:netbsd:1.5.2:*:*:*:*:*:*:*
netbsd netbsd 1.5.3 cpe:2.3:o:netbsd:netbsd:1.5.3:*:*:*:*:*:*:*
netbsd netbsd 1.6 cpe:2.3:o:netbsd:netbsd:1.6:*:*:*:*:*:*:*

References for CVE-2003-0001

URL Tags
http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0016.html
http://marc.info/?l=bugtraq&m=104222046632243&w=2
http://secunia.com/advisories/7996
http://www.atstake.com/research/advisories/2003/a010603-1.txt Vendor Advisory
http://www.atstake.com/research/advisories/2003/atstake_etherleak_report.pdf
http://www.kb.cert.org/vuls/id/412115 Third Party Advisory US Government Resource
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
http://www.osvdb.org/9962
http://www.redhat.com/support/errata/RHSA-2003-025.html
http://www.redhat.com/support/errata/RHSA-2003-088.html
http://www.securityfocus.com/archive/1/305335/30/26420/threaded
http://www.securityfocus.com/archive/1/307564/30/26270/threaded
http://www.securitytracker.com/id/1031583
http://www.securitytracker.com/id/1040185
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2665
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