CVE-2009-4444 describes a vulnerability in Microsoft IIS 5.x and 6.x where the server incorrectly parses filenames, allowing attackers to bypass file extension restrictions in third-party upload applications. By appending a semicolon and a safe extension to a malicious file (e.g., .asp;.jpg), attackers can trick IIS into executing the malicious file. This vulnerability carries a CVSS score of 6.0, indicating a medium severity with network access, medium attack complexity, and potential for partial confidentiality, integrity, and availability impact. Despite its age and a high FAUCET Risk Score of 97/100, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.0CPE matchmatch criteria | cpe:2.3:a:microsoft:internet_information_services:5.0:*:*:*:*:*:*:* | ||
6.0CPE matchmatch criteria | cpe:2.3:a:microsoft:internet_information_services:6.0:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:S/C:P/I:P/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.