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CVE-2003-0466

81
FAUCET Score

CVE-2003-0466 describes an off-by-one buffer overflow in the fb_realpath() function, derived from BSD's realpath, impacting wu-ftpd versions 2.5.0 through 2.6.2, as well as various operating systems including Apple, FreeBSD, NetBSD, OpenBSD, Red Hat, and Sun. This critical vulnerability (CVSS 9.8) allows unauthenticated remote attackers to execute arbitrary code by supplying specially crafted pathnames of length MAXPATHLEN+1 through FTP commands like STOR or RETR. While not listed on CISA's KEV, multiple public exploits exist on ExploitDB, and the vulnerability has garnered significant community discussion, indicating a high potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
2.6.1-16CPE matchmatch criteria
cpe:2.3:a:redhat:wu_ftpd:2.6.1-16:*:*:*:*:*:*:*
>= 2.5.0, <= 2.6.2CPE matchmatch criteria
cpe:2.3:a:wuftpd:wu-ftpd:*:*:*:*:*:*:*:*
10.2.6CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.2.6:*:*:*:*:*:*:*
10.2.6CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x_server:10.2.6:*:*:*:*:*:*:*
>= 4.0, <= 5.0CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
78.11%
Probability of exploitation in next 30 days
EPSS Percentile
99.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-78 · Aug 11, 2003
This CVE's current EPSS score of 0.7812 is in the 98th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux ES 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 Advanced Workstation 2.1
View patch

Vendor Advisories (1)

redhatCVE-2003-0466Important

security flaw

Jul 31, 2003

References

ftp.netbsd.org / pub/NetBSD/security/advisories/NetBSD-SA2003-011.txt.asc
Broken Link
archives.neohapsis.com / archives/vulnwatch/2003-q3/0065.html
Broken LinkExploitVendor Advisory
download.immunix.org / ImmunixOS/7+/Updates/errata/IMNX-2003-7+-019-01
Broken Link
isec.pl / vulnerabilities/isec-0011-wu-ftpd.txt
Broken Link
marc.info
Mailing List
marc.info
Mailing List
marc.info
Mailing List
marc.info
Mailing List
secunia.com / advisories/9423
Broken Link
secunia.com / advisories/9446
Broken Link
secunia.com / advisories/9447
Broken Link
secunia.com / advisories/9535
Broken Link
securitytracker.com / id
Broken LinkThird Party AdvisoryVDB Entry
exchange.xforce.ibmcloud.com / vulnerabilities/12785
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1970
Broken Link
sunsolve.sun.com / search/document.do
Broken Link
debian.org / security/2003/dsa-357
Broken Link
kb.cert.org / vuls/id/743092
Third Party AdvisoryUS Government Resource
mandriva.com / security/advisories
Third Party Advisory
novell.com / linux/security/advisories/2003_032_wuftpd.html
Broken Link
osvdb.org / 6602
Broken Link
redhat.com / support/errata/RHSA-2003-245.html
Broken Link
redhat.com / support/errata/RHSA-2003-246.html
Broken Link
securityfocus.com / archive/1/424852/100/0/threaded
Broken LinkThird Party AdvisoryVDB Entry
securityfocus.com / archive/1/425061/100/0/threaded
Broken LinkThird Party AdvisoryVDB Entry
securityfocus.com / bid/8315
Broken LinkExploitPatchThird Party AdvisoryVDB EntryVendor Advisory
turbolinux.com / security/TLSA-2003-46.txt
Broken Link