2.1

CVE-1999-1538: microsoft internet_information_server

CVSS: 2.1v2.0LowModified
Published 12-09-2001Last modified 01-08-2024
Open JSON

Vulnerability summary

CVE-1999-1538 is a low (CVSS 2.1) vulnerability in microsoft internet_information_server. EPSS estimates a 25.27% chance of exploitation in the next 30 days, higher than 97.9% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
23/100
0100
Low · default modelHow is this calculated?
CVSS score
2.1/10
010
Low · v2.0 (NVD)
EPSS score
25.27%
0%100%
High · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference, exploit-database

Timeline

  1. 12-09-2001
    PublishedVulnerability first disclosed.
  2. 01-08-2024
    Last modifiedVulnerability information updated.

Description

When IIS 2 or 3 is upgraded to IIS 4, ism.dll is inadvertently left in /scripts/iisadmin, which does not restrict access to the local machine and allows an unauthorized user to gain access to sensitive server information, including the Administrator's password.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

25.27%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

0.00 pp

From 25.27% on 20-09-2026

20-09-202620-10-2026
EPSS score
25.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (securityfocus.com)

    Maturity: unknown

  • exploit-databaseremotewindowsVerified

    Microsoft IIS 4 (Windows NT) - Remote Web-Based Administration

    Maturity: weaponized

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Microsoft1 product

1 vendor · 1 product

References

3 links