Buffer overflow in Microsoft command processor (CMD.EXE) for Windows NT and Windows 2000 allows a local user to cause a denial of service via a long environment variable, aka the "Malformed Environment Variable" vulnerability
Published Jul 12, 2000
5.0
MEDIUMCVSS 2.0
EPSS 7.45%
Description
Buffer overflow in Microsoft command processor (CMD.EXE) for Windows NT and Windows 2000 allows a local user to cause a denial of service via a long environment variable, aka the "Malformed Environment Variable" vulnerability.
Affected products
No data.
Configuration 1
- n/a
Configuration 2
- 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.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 | 7.45% (0.07452) | 94.27th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.45% (0.07452) | 93.65th | v5 (v2026.06.15) |
| Dec 28, 2025 | 17.18% (0.17179) | 94.79th | v4 (v2025.03.14) |
| Dec 27, 2025 | 11.56% (0.11559) | 93.43th | v4 (v2025.03.14) |
| Oct 28, 2025 | 17.18% (0.17179) | 94.72th | v4 (v2025.03.14) |
| Oct 27, 2025 | 11.56% (0.11559) | 93.34th | v4 (v2025.03.14) |
| Oct 23, 2025 | 17.18% (0.17179) | 94.71th | v4 (v2025.03.14) |
| Oct 1, 2025 | 21.74% (0.21738) | 95.58th | v4 (v2025.03.14) |
| Mar 17, 2025 | 12.28% (0.12284) | 93.31th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00045) | 17.95th | v3 (v2023.03.01) |
| Apr 17, 2024 | 0.04% (0.00045) | 14.27th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.04% (0.00045) | 12.24th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00053) | 19.22th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.22% (0.02221) | 81.26th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.22% (0.02221) | 79.45th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.22% (0.02221) | 58.09th | v2 (v2022.01.01) |
No CWE recorded.
References (3)
- http://archives.neohapsis.com/archives/bugtraq/2000-04/0147.html mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/1135 vdb-entryx_refsource_BIDPatchVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-027 vendor-advisoryx_refsource_MS
| Link | Providers | Tags |
|---|---|---|
| http://archives.neohapsis.com/archives/bugtraq/2000-04/0147.html | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/1135 | vdb-entryx_refsource_BIDPatchVendor Advisory | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-027 | vendor-advisoryx_refsource_MS |
Change history (0)
No recorded changes yet.