01 Record
CVE-2009-4445
Microsoft Internet Information Services (IIS), when used in conjunction with unspecified third-party upload applications, allows remote attackers to create empty files with arbitrary extensions via a
UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
02 Description
Microsoft Internet Information Services (IIS), when used in conjunction with unspecified third-party upload applications, allows remote attackers to create empty files with arbitrary extensions via a
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 12.75% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 95.9% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2009-12-29 19:00Z16 YR AGO
- Last updated
- 2024-08-07 07:01Z2 YR AGO
- Reserved
- 2009-12-29
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- dd3f7fcb9f58c0faa89c15627dea8fe187c9a58dc56d915e3f5897ddf5a80159
05 Affected products
VendorProductVersionsPlatforms
06 References
- securitytracker.com1023387http://securitytracker.com/id?1023387
- soroush.secproject.comhttp://soroush.secproject.com/downloadable/iis-semicolon-report.pdf
- exchange.xforce.ibmcloud.comms-iis-colon-security-bypass(55308)https://exchange.xforce.ibmcloud.com/vulnerabilities/55308