CVE-1999-1127: microsoft windows_nt
CVSS: 7.5v3.1HighModified
Published 09-03-2002Last modified 01-08-2024
Vulnerability summary
CVE-1999-1127 is a high (CVSS 7.5) vulnerability in microsoft windows_nt. EPSS estimates a 17.75% chance of exploitation in the next 30 days, higher than 97.1% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
17.75%
0%100%
Medium · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 09-03-2002PublishedVulnerability first disclosed.
- 01-08-2024Last modifiedVulnerability information updated.
Description
Windows NT 4.0 does not properly shut down invalid named pipe RPC connections, which allows remote attackers to cause a denial of service (resource exhaustion) via a series of connections containing malformed data, aka the "Named Pipes Over RPC" vulnerability.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
17.75%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
0.00 pp
From 17.75% on 18-09-2026
18-09-202618-10-2026
EPSS score17.75%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft1 product
- windows_nt4.0
1 vendor · 1 product
References
3 links
support.microsoft.com/support/kb/articles/Q195/7/33.aspVendor AdvisoryX Refsource MSKBBroken LinkPatch- docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-017Vendor AdvisoryX Refsource MSPatch