CVE-1999-0874: microsoft internet_information_server
Vulnerability summary
CVE-1999-0874 is a high (CVSS 10.0) vulnerability in microsoft internet_information_server. EPSS estimates a 74.65% chance of exploitation in the next 30 days, higher than 99.4% of scored vulnerabilities. 6 public exploits are recorded.
Timeline
- 02-06-2000PublishedVulnerability first disclosed.
- 01-08-2024Last modifiedVulnerability information updated.
Description
Buffer overflow in IIS 4.0 allows remote attackers to cause a denial of service via a malformed request for files with .HTR, .IDC, or .STM extensions.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
74.65%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
0.00 pp
From 74.65% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
6 foundMicrosoft IIS 4.0 - Remote Buffer Overflow (3)
Maturity: weaponized
Microsoft IIS 4.0 - '.htr' Path Overflow (MS02-018) (Metasploit)
Maturity: weaponized
Microsoft IIS 4.0 - Remote Buffer Overflow (1)
Maturity: weaponized
Show all 6 exploits
Microsoft IIS 4.0 - Remote Buffer Overflow (2)
Maturity: weaponized
Microsoft IIS 4.0 - Remote Buffer Overflow (4)
Maturity: weaponized
MS02-018 Microsoft IIS 4.0 .HTR Path Overflow
exploit/windows/iis/ms02_018_htr
Maturity: weaponized
Weaknesses
CWE · root causeAffected systems
Microsoft2 products
1 vendor · 2 products
References
5 links- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A915VDB EntrySignatureX Refsource OVAL
docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-019Vendor AdvisoryX Refsource MS