CVE-1999-0284 EXPLOIT
7.5
HIGH · CVSS 2.0 · EPSS 11.5% (pctl 96)
Patch early
A public exploit exists.
Description
Denial of service to NT mail servers including Ipswitch, Mdaemon, and Exchange through a buffer overflow in the SMTP HELO command.
Scoring
| CVSS | 7.5 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| EPSS | 11.53% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-120 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 1998-01-01 |
| Last modified | 2026-06-16 |
Affected (2)
| Vendor | Product |
|---|---|
| ibm | lotus domino mail server |
| microsoft | exchange server |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Alt-N MDaemon Server 2.71 SP1 - SMTP HELO Argument Buffer Overflow | 1999-03-10 |
| exploit-db | Microsoft Exchange Server 4.0/5.0 - SMTP HELO Argument Buffer Overflow | 1998-03-10 |
| exploit-db | Ipswitch Imail Server 5.0 - SMTP HELO Argument Buffer Overflow | 1998-03-10 |
References
→ the Explorer · watch your stack · NVD