CVE-2000-1227
Medium
Elevated severity or exploit probability.
CVSS base
5.0
MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS — probability of exploitation (30 days)
13.0%
96.2th percentile
CISA KEV
Not listed
Weakness / dates
—
Published 2000-12-31 · modified 2026-09-23
CVSS breakdown
AV:N/AC:L/Au:N/C:N/I:N/A:P
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Authentication | N | None |
| Confidentiality | N | None |
| Integrity | N | None |
| Availability | P | Partial |
Timeline
- 2000-12-31 — Published (NVD)
- 2026-09-23 — Last modified (NVD)
Description
Windows NT 4.0 and Windows 2000 hosts allow remote attackers to cause a denial of service (unavailable connections) by sending multiple SMB SMBnegprots requests but not reading the response that is sent back.