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CVE-2003-0001

67
FAUCET Score

CVE-2003-0001, known as Etherleak, is an information disclosure vulnerability affecting multiple Ethernet NIC device drivers in operating systems like FreeBSD, Linux, and Microsoft. It arises from the failure of these drivers to properly pad network frames, allowing remote attackers to extract sensitive data from previous packets or kernel memory using malformed packets. With a CVSS score of 5.0, this vulnerability is network-exploitable with low complexity, potentially leading to unauthorized information access. While not currently on the KEV catalog or Hot List, exploit code is publicly available on ExploitDB, though there is minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.2CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:4.2:*:*:*:*:*:*:*
4.3CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:4.3:*:*:*:*:*:*:*
4.4CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:4.4:*:*:*:*:*:*:*
4.5CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:4.5:*:*:*:*:*:*:*
4.6CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:4.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
70.03%
Probability of exploitation in next 30 days
EPSS Percentile
99.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-26076 · Jun 10, 2013
This CVE's current EPSS score of 0.7003 is in the 100th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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

Patch Available

Vendor Patches (6)

redhatpatch availablevia redhat_api
Product: Red Hat Linux 6.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 8.0
View patch

Vendor Advisories (1)

redhatCVE-2003-0001Important

cisco: information leak in ethernet frames.

Jan 6, 2003

References

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