Home/CVE/Denial of service to NT mail servers including Ipswitch, Mdaemon, and Exchange through a buffer overflow in the SMTP HEL
CVE

CVE-1999-0284

Denial of service to NT mail servers including Ipswitch, Mdaemon, and Exchange through a buffer overflow in the SMTP HEL

Denial of service to NT mail servers including Ipswitch, Mdaemon, and Exchange through a buffer overflow in the SMTP HELO command.

HIGH · CVSS 7.5 EPSS 0.03369
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  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
▤

Affected Products & Versions

2
ibm lotus domino mail serverall versions
microsoft exchange serverall versions
⚠

Public Exploits & PoCs

3
dosAlt-N MDaemon Server 2.71 SP1 - SMTP HELO Argument Buffer Overflowverified
dosIpswitch Imail Server 5.0 - SMTP HELO Argument Buffer Overflowverified
remoteMicrosoft Exchange Server 4.0/5.0 - SMTP HELO Argument Buffer Overflowverified
▣

Scoring & Timeline

7.5
HIGH · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published to NVD01 Jan 1998 · 05:00 AM
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0284
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