CVE-1999-1302: Unspecified vulnerability in pt_chmod in SCO UNIX 4.2 and earlier allows local users to gain root access.

Security readout for executives and security teams

This is a legacy local privilege-escalation issue in SCO UNIX 4.2 and earlier. A person who already has local user access could gain root privileges. The business concern is mainly old, forgotten UNIX systems still supporting critical operations. Exposure is likely limited to legacy SCO UNIX 4.2 or earlier systems where untrusted or weakly controlled local user access exists. Modern environments are unlikely to be affected unless they retain old operational technology, archival, or business-critical UNIX hosts. Treat as high priority only where SCO UNIX 4.2 or earlier remains in service. The issue is old and local, but root compromise on legacy systems can create serious operational and recovery risk. Mitigation focus: Inventory for SCO UNIX 4.2 and earlier systems.; Check SCO, CERT, and CIAC guidance for official remediation.; Restrict local accounts and interactive shell access on affected hosts..

Prepared

Jul 1, 2026, 09:01 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.