Security readout for executives and security teams
This old CVE describes a remote denial-of-service issue in the Linux in.telnetd telnet daemon. A malformed TERM environment value can crash or disrupt the service. Business impact is mainly service availability, not confirmed data theft or system takeover. The provided sources do not identify exact affected distributions, versions, patches, or active exploitation. Exposure is likely limited to systems still running Linux in.telnetd with telnet reachable by untrusted users. Internet-facing telnet is the highest concern. The source bundle does not name exact distributions, versions, or package builds. Treat as legacy hygiene unless telnet is exposed. If internet-facing telnet exists, prioritize removal or strict access control because the service is obsolete and the CVE details are incomplete. Mitigation focus: Identify and disable unnecessary telnet services.; Restrict telnet access to trusted management networks only.; Prefer SSH for remote administration..
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
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ATT&CK lookup starting points
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CVE-1999-0740 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
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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
Products and packages named in the record
CWE details
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