Security readout for executives and security teams
This CVE describes a configuration-dependent weakness in Cisco 675 routers running CBOS. If exec or superuser passwords were not set, a remote attacker could establish Telnet sessions. Business risk depends on whether these legacy routers still exist and whether Telnet management is reachable. Exposure is most likely in environments that still operate Cisco 675 CBOS routers, especially where Telnet management is reachable from untrusted networks and required passwords are absent. Treat this as a legacy exposure check rather than a broad emergency. If any affected router is Internet-reachable over Telnet, prioritize containment because the described condition could allow unauthorized administrative access. Mitigation focus: Inventory Cisco 675 routers running CBOS.; Confirm exec and superuser passwords are configured.; Restrict Telnet management access to trusted administration networks..
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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Credential and access behavior lookup
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Open ATT&CK lookupCVE-1999-0889 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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