Security readout for executives and security teams
CVE-1999-1449 describes a local denial-of-service flaw on SunOS 4.1.4 running on Sparc 20 systems. A local user can trigger a kernel panic by reading the /dev/tcx0 TCX device. This is not described as remote code execution, but it can crash an affected legacy host. Exposure is likely limited to rare legacy SunOS 4.1.4 Sparc 20 systems with the TCX device present and accessible to local users. Modern environments are unlikely to be affected unless they retain old SPARC hardware for operational or archival workloads. Treat this as a legacy-system availability risk. It is not urgent for most modern estates, but any remaining affected host supporting critical operations should be isolated, access-controlled, or retired because a local user could crash it. Mitigation focus: Inventory for SunOS 4.1.4 Sparc 20 systems with /dev/tcx0 present.; Check vendor or archival guidance for any available SunOS remediation.; Restrict interactive local user access on affected legacy hosts..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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CVE-1999-1449 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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Source materials
- CVE List V5 sourceCVE List V5
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