Security readout for executives and security teams
NetWin's DSMTP mail server (version 2.7q in the dmail package) contains a flaw that lets an attacker on the network send a specially crafted ETRN command to overflow a memory buffer. The result can be arbitrary code execution or a crash of the mail service. This is a legacy issue from 2000 affecting a niche Windows-era SMTP product. Exposure is limited to organizations still running NetWin DSMTP 2.7q or the vintage dmail package on internet-facing or internal SMTP ports (typically TCP/25). Given the product's age and small footprint, exposure in modern estates should be rare; any surviving instance is likely on legacy or forgotten infrastructure. Low priority for most organizations unless legacy Windows-era mail infrastructure is still in production. If a NetWin DSMTP instance is found, prioritize replacement or upgrade — a decades-old, unpatched SMTP server on the network is a material risk regardless of CVE age. Mitigation focus: Inventory SMTP services and identify any NetWin DSMTP or dmail installations still running.; Consult NetWin's security advisory page for a fixed release beyond 2.7q and upgrade.; Retire or replace unsupported legacy SMTP servers with a maintained mail platform..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2000-0490 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- dmail-etrn-dos(4579)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.