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CVE-2003-0466
Off-by-one error in the fb_realpath() function, as derived from the realpath function in BSD, may allow attackers to execute arbitrary…
Critical9.8EPSS 78.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Timeline
ID reserved
By mitre
- 36 days later
· 36 days later
Published
- 21 years later
· 21 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 78.1% · top 0.4% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
References (26)
- 20030804 Off-by-one Buffer Overflow Vulnerability in BSD libc realpath(3) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://isec.pl/vulnerabilities/isec-0011-wu-ftpd.txt (opens in a new tab)x_refsource_MISCx_transferred
- 9446 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 6602 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- oval:org.mitre.oval:def:1970 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 20060213 Latest wu-ftpd exploit :-s (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 8315 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 9423 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20030731 wu-ftpd fb_realpath() off-by-one bug (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20030731 wu-ftpd fb_realpath() off-by-one bug (opens in a new tab)mailing-listx_refsource_VULNWATCHx_transferred
- IMNX-2003-7+-019-01 (opens in a new tab)vendor-advisoryx_refsource_IMMUNIXx_transferred
- RHSA-2003:246 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 20060214 Re: Latest wu-ftpd exploit :-s (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- VU#743092 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- RHSA-2003:245 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- SuSE-SA:2003:032 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 1001257 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
- DSA-357 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20030804 wu-ftpd-2.6.2 off-by-one remote exploit. (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 1007380 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- MDKSA-2003:080 (opens in a new tab)vendor-advisoryx_refsource_MANDRAKEx_transferred
- libc-realpath-offbyone-bo(12785) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- FreeBSD-SA-03:08 (opens in a new tab)vendor-advisoryx_refsource_FREEBSDx_transferred
- TLSA-2003-46 (opens in a new tab)vendor-advisoryx_refsource_TURBOx_transferred
- 9535 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 9447 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2003-0466)Record last updated .