HIGH
In some cases, Service Pack 4 for Windows NT 4.0 can allow access to network shares using a blank password, through a problem with a null NT hash value
Published Sep 29, 1999
7.5
HIGHCVSS 2.0
EPSS 3.69%
Description
In some cases, Service Pack 4 for Windows NT 4.0 can allow access to network shares using a blank password, through a problem with a null NT hash value.
Affected products
No data.
- 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.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.69% 0.03686
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03686
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.69% (0.03686) | 89.34th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.69% (0.03686) | 88.22th | v5 (v2026.06.15) |
| Mar 30, 2025 | 5.70% (0.05702) | 89.48th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.43% (0.03431) | 78.93th | v4 (v2025.03.14) |
| Mar 19, 2025 | 5.70% (0.05702) | 89.22th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.50% (0.03499) | 86.81th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.00% (0.00998) | 84.27th | v3 (v2023.03.01) |
| Feb 8, 2024 | 1.00% (0.00998) | 83.13th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.99% (0.01987) | 86.97th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.70% (0.04700) | 89.19th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.70% (0.04700) | 88.10th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.70% (0.04700) | 74.46th | v2 (v2022.01.01) |
Weaknesses (1)
References (2)
- http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ214840 vendor-advisoryx_refsource_MSKB
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-004 vendor-advisoryx_refsource_MS
| Link | Providers | Tags |
|---|---|---|
| http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ214840 | vendor-advisoryx_refsource_MSKB | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-004 | vendor-advisoryx_refsource_MS |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 29, 1999
Updated Aug 1, 2024
Reserved Jun 7, 1999
Link CVE-1999-0366
CISA Vulnrichment
Updated n/a