CVE-2006-4403
MEDIUM · CVSS 4.0EPSS 3.7%EU EUVD
The FTP server in Apple Mac OS X 10.4.8 and earlier, when FTP Access is enabled, will crash when a login failure occurs with a valid user name, which allows remote attackers to cause a denial of service (crash) and enumerate valid usernames.
Key facts
- CVSS score
- 4.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:H/Au:N/C:P/I:N/A:P- EPSS score
- 3.7% (90th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2006-4391)
- Published
- November 30, 2006
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2006-4391 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- apple / mac os x
Certified products that may be affected
1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.
- Apple Mac OS X v10.3.6 and Apple Mac OS X Server V10.3.6 - Apple Inc. - Common Criteria CCEVS-VR-0086-2005 - archived
References
- http://docs.info.apple.com/article.html?artnum=304829
- http://lists.apple.com/archives/security-announce/2006/Nov/msg00001.html
- http://secunia.com/advisories/23155(Vendor Advisory)
- http://securitytracker.com/id?1017303
- http://www.kb.cert.org/vuls/id/371648(US Government Resource)
- http://www.osvdb.org/30734
- http://www.securityfocus.com/bid/21335
- http://www.us-cert.gov/cas/techalerts/TA06-333A.html(US Government Resource)
- http://www.vupen.com/english/advisories/2006/4750
- https://exchange.xforce.ibmcloud.com/vulnerabilities/30621
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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