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CVE-2003-0461

11
FAUCET Score

CVE-2003-0461 describes an information disclosure vulnerability in Linux 2.4.x, specifically affecting Red Hat Linux. A local attacker can access /proc/tty/driver/serial to determine the exact number of characters transmitted over serial links. This could potentially reveal sensitive information, such as the length of passwords. The vulnerability has a low severity CVSS score of 2.1 (AV:L/AC:L/Au:N/C:P/I:N/A:N), indicating local access is required and only confidentiality is impacted. There is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.1CPE matchmatch criteria
cpe:2.3:o:redhat:linux:7.1:*:*:*:*:*:*:*
7.2CPE matchmatch criteria
cpe:2.3:o:redhat:linux:7.2:*:*:*:*:*:*:*
7.3CPE matchmatch criteria
cpe:2.3:o:redhat:linux:7.3:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:redhat:linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 58th percentile among its peer group of 2,096 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 0.6 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 (8)

debianpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: kernel-0:2.4.21-15.EL
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
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
redhatpatch availablevia redhat_api
Product: Red Hat Linux 9
View patch

Vendor Advisories (1)

redhatCVE-2003-0461Low

security flaw

Jul 21, 2003

References

rsbac.dyndns.org / pipermail/rsbac/2002-May/000162.html
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A304
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9330
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A997
debian.org / security/2004/dsa-358
debian.org / security/2004/dsa-423
PatchVendor Advisory
redhat.com / support/errata/RHSA-2003-238.html
PatchVendor Advisory
redhat.com / support/errata/RHSA-2004-188.html