CVE-2000-0457
HighExploitation Probability (EPSS)
Very high risk99th percentile - higher than 99% of all known CVEs
Summary
The vulnerability in ISM.DLL in IIS 4.0 and 5.0 allows remote attackers to read file contents by sending a request to the file with a large number of encoded spaces (%20) and ending with a .htr extension.
Risk Assessment
Attackers may gain access to sensitive data stored in files, potentially leading to a breach of system security.
Recommendation
It is recommended to upgrade to a newer version of IIS and implement appropriate security measures to mitigate the risks associated with this vulnerability.
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Original NVD description (English source)
ISM.DLL in IIS 4.0 and 5.0 allows remote attackers to read file contents by requesting the file and appending a large number of encoded spaces (%20) and terminated with a .htr extension, aka the ".HTR File Fragment Reading" or "File Fragment Reading via .HTR" vulnerability.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

