Servers and applications
CVE-1999-0284
Denial of service to NT mail servers including Ipswitch, Mdaemon, and Exchange through a buffer overflow in the SMTP HELO command.
- Severity
- High 7.5
- Published
- 1 Jan 1998
- Last changed
- 16 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Exploit chance
- 12% in the next 30 daysHigher than 96% of CVEs. EPSS by FIRST, 12 Nov 2026
- Weakness
- Buffer overflow (CWE-120)
- Attack
- Over the network · No login needed
- Attacker can
- Read some data · Change some data · Slow it down
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
Microsoft Exchange ServerServers and applications · cpe:a:microsoft:exchange_server |
|