---
id: CVE-1999-0253
title: >-
  IIS 3.0 with the iis-fix hotfix installed allows remote intruders to read
  source code for ASP programs by using a %2e instead of a 
summary: >-
  IIS 3.0 with the iis-fix hotfix installed allows remote intruders to read
  source code for ASP programs by using a %2e instead of a . (dot) in the URL.
severity: high
cvss: 7.5
cvssVector: 'AV:N/AC:L/Au:N/C:P/I:P/A:P'
published: '1997-01-01'
updated: '2026-06-16'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-1999-0253'
references:
  - url: 'http://www.securityfocus.com/bid/1814'
    label: cve@mitre.org
  - url: 'http://www.securityfocus.com/bid/1814'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.07952
epssPercentile: 0.9448
ingestedAt: '2026-06-22T15:59:08.168Z'
---

## Overview

IIS 3.0 with the iis-fix hotfix installed allows remote intruders to read source code for ASP programs by using a %2e instead of a . (dot) in the URL.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.