CVE-1999-0874
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.
Affects 3 products across 1 vendor.
Parent class for buffer-related vulnerabilities where operations exceed buffer boundaries.
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Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.
A buffer overflow vulnerability in IIS 4.0 can be exploited by remote attackers to cause a denial of service through a malformed request for files with .HTR, .IDC, or .STM extensions.
BSID: BS-1999-GLOBAL-159067-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH
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| CVE ID | CVE-1999-0874 |
|---|---|
| BSID | BS-1999-GLOBAL-159067-C BreachSpider Global ID |
| CVSS Vector | AV:N/AC:L/Au:N/C:C/I:C/A:C |
| Published | 1999-06-16 |
| Last Modified | 2026-06-16 |
| ICS Relevance | 15% |
| Weakness (CWE) | |
| Source | NVD |
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.
Source: NIST NVD / MITRE CVE Database
The vulnerability is triggered by sending a specially crafted request to the server for files with .HTR, .IDC, or .STM extensions, which can lead to a buffer overflow and cause the server to crash or become unresponsive.
Exploitation Likelihood: CRITICAL
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Windows Nt | All versions |
| Microsoft | Windows 2000 | All versions |
| Microsoft | Internet Information Server | 4.0 |
No official vendor advisory link on record. See the CVE record →
| CISA known-exploited | Not in KEV catalog |
|---|---|
| Public Exploit | ⚠ Available — Reference |
| PoC Code | Not confirmed |
AI Enrichment Record — provenance & audit hash
| Model | /workspace/models/qwen2.5-coder-32b-instruct-bf16 |
|---|---|
| Confidence | HIGH |
| Enriched At | 2026-05-24 |
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