CVE-2009-2521 Details
Description
Stack consumption vulnerability in the FTP Service in Microsoft Internet Information Services (IIS) 5.0 through 7.0 allows remote authenticated users to cause a denial of service (daemon crash) via a list (ls) -R command containing a wildcard that references a subdirectory, followed by a .. (dot dot), aka "IIS FTP Service DoS Vulnerability."
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No CVSS 3.x data is available for this CVE.
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-400 | Uncontrolled Resource Consumption | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| microsoft internet information services | >= 5.0, <= 7.0 |
CPE
Remediation
| |
Change History
13 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 16, 2026 | CVE Modified | [email protected] |
| Apr 23, 2026 | Status Change | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Nov 7, 2023 | CVE Modified | [email protected] |
| Nov 23, 2020 | Modified Analysis | [email protected] |
| Nov 23, 2020 | CPE Deprecation Remap | [email protected] |
| Jul 3, 2019 | CPE Deprecation Remap | [email protected] |
| Jul 3, 2019 | CPE Deprecation Remap | [email protected] |
| Oct 12, 2018 | CVE Modified | [email protected] |
| Aug 13, 2018 | CVE Modified | [email protected] |
| Sep 19, 2017 | CVE Modified | [email protected] |
| Sep 4, 2009 | Initial Analysis | [email protected] |