CVE-2009-3023

Exp

Buffer overflow in the FTP Service in Microsoft Internet Information Services (IIS) 5.0 through 6.0 allows remote authenticated users to execute arbitrary code via a crafted NLST (NAME LIST) command that uses wildcards, leading to memory corruption, aka "IIS FTP Service RCE and DoS Vulnerability."

Published: 2009-08-31 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-3023 is rated High Exploit Risk (84.1/100): CVSS Critical severity, with high exploitation likelihood (EPSS 77.73%, 99th percentile). 6 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-3023

EDB-ID Source Kind Published Link
16740 exploit_db edb 2010-11-12 Exploit-DB ↗
9559 exploit_db edb 2009-09-01 Exploit-DB ↗
9541 exploit_db edb 2009-08-31 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-3023

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-16 79.31% 77.73% -1.58%
2 2026-03-19 77.22% 79.31% +2.09%
3 2026-03-04 — 77.22% —

Full EPSS history (51 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-3023

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.0 2.0 HIGH
AV:N/AC:L/Au:S/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.0 10.0 [email protected]

Weakness enumeration for CVE-2009-3023

Affected software / configurations for CVE-2009-3023

Vendor Product Version Raw CPE
microsoft internet_information_server >= 5.0, <= 6.0 cpe:2.3:a:microsoft:internet_information_server:*:*:*:*:*:*:*:*

References for CVE-2009-3023

cvelogic Threat Intelligence