Is CVE-2003-0466 in the CISA KEV catalog?

No. CVE-2003-0466 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2003-0466?

CVE-2003-0466 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2003-0466?

CVE-2003-0466 has an EPSS score of 78.11% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2003-0466?

No published fix for CVE-2003-0466 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2003-0466

CRITICALEPSS 100th pctl

9.8

CVSS v3

NVD

Description

Off-by-one error in the fb_realpath() function, as derived from the realpath function in BSD, may allow attackers to execute arbitrary code, as demonstrated in wu-ftpd 2.5.0 through 2.6.2 via commands that cause pathnames of length MAXPATHLEN+1 to trigger a buffer overflow, including (1) STOR, (2) RETR, (3) APPE, (4) DELE, (5) MKD, (6) RMD, (7) STOU, or (8) RNTO.

CWE-193

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

78.11%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Patch1

securityfocus.com

Exploit1

archives.neohapsis.com

Third-Party Advisory6

Mailing List4

Other references14

Related Vulnerabilities

Other CWE-193 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-3156	High	7.8	99%	KEV	Fix
CVE-2023-44444	High	7.8	56%	-	Fix
CVE-2021-23017	High	7.7	53%	-	Fix
CVE-2023-28709	High	7.5	52%	-	Fix
CVE-2018-8828	Critical	9.8	31%	-	Fix
CVE-2001-0609	Critical	9.8	18%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.