CVE-2001-1529: Buffer overflow in rpc.yppasswdd (yppasswd server) in AIX allows attackers to gain unauthorized access via...

Security readout for executives and security teams

CVE-2001-1529 describes a buffer overflow in the AIX rpc.yppasswdd password-change service. If reachable, a maliciously long input could let an attacker gain unauthorized access. The public record is old and sparse, so affected versions, severity, and exact fix status are not clear from the provided sources. Most likely exposure is legacy AIX environments using NIS and running rpc.yppasswdd. Organizations without AIX or without this service enabled are unlikely to be affected based on the provided sources. Treat this as a legacy infrastructure risk. It is not supported by current active-exploitation evidence in the provided sources, but any reachable password-management service on old AIX systems deserves prompt inventory, isolation, and vendor-guidance review. Mitigation focus: Inventory AIX systems that run rpc.yppasswdd or NIS password services.; Check IBM APAR IY21609 or current IBM guidance for applicable fixes.; Disable rpc.yppasswdd where NIS password changes are not required..

Prepared

Jun 29, 2026, 19:18 UTC (UTC+00:00)

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