HIGH
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
Published Jun 2, 2000
10.0
HIGHCVSS 2.0
EPSS 74.65%
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.
Affected products
No data.
Configuration 1
- 4.0
Configuration 2
OR
- n/a
- n/a
- 4.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
10.0 HIGH NVD
AV:N/AC:L/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
74.65% 0.74651
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.74651
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 74.65% (0.74651) | 99.49th | v5 (v2026.06.15) |
| Jul 20, 2026 | 74.65% (0.74651) | 99.45th | v5 (v2026.06.15) |
| Jun 20, 2026 | 78.10% (0.78099) | 99.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 74.65% (0.74651) | 99.44th | v5 (v2026.06.15) |
| Oct 23, 2025 | 83.54% (0.83543) | 99.24th | v4 (v2025.03.14) |
| Oct 1, 2025 | 85.83% (0.85831) | 99.36th | v4 (v2025.03.14) |
| Sep 2, 2025 | 83.54% (0.83543) | 99.25th | v4 (v2025.03.14) |
| Aug 30, 2025 | 86.87% (0.86874) | 99.39th | v4 (v2025.03.14) |
| Mar 30, 2025 | 85.13% (0.85132) | 99.30th | v4 (v2025.03.14) |
| Mar 29, 2025 | 87.06% (0.87063) | 99.31th | v4 (v2025.03.14) |
| Mar 17, 2025 | 85.13% (0.85132) | 99.31th | v4 (v2025.03.14) |
| Dec 12, 2024 | 90.74% (0.90742) | 98.98th | v3 (v2023.03.01) |
| Feb 8, 2024 | 90.74% (0.90742) | 98.72th | v3 (v2023.03.01) |
| Mar 7, 2023 | 71.73% (0.71732) | 97.46th | v3 (v2023.03.01) |
| Mar 6, 2023 | 74.52% (0.74522) | 99.32th | v2 (v2022.01.01) |
| Feb 4, 2022 | 74.52% (0.74522) | 99.17th | v2 (v2022.01.01) |
Weaknesses (1)
References (5)
- http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ234905 vendor-advisoryx_refsource_MSKB
- http://www.ciac.org/ciac/bulletins/j-048.shtml third-party-advisorygovernment-resourcex_refsource_CIAC
- http://www.eeye.com/html/Research/Advisories/AD06081999.html third-party-advisoryx_refsource_EEYE
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-019 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A915 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ234905 | vendor-advisoryx_refsource_MSKB | |
| http://www.ciac.org/ciac/bulletins/j-048.shtml | third-party-advisorygovernment-resourcex_refsource_CIAC | |
| http://www.eeye.com/html/Research/Advisories/AD06081999.html | third-party-advisoryx_refsource_EEYE | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-019 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A915 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jun 2, 2000
Updated Aug 1, 2024
Reserved Dec 8, 1999
Link CVE-1999-0874
CISA Vulnrichment
Updated n/a