CVE-2005-4812: The SISCO OSI stack for Windows, as used by MMS-EASE 7.10 and earlier, AX-S4 MMS 5.01 and earlier, AX-S4 IC...

Security readout for executives and security teams

This is an old remote denial-of-service issue in SISCO’s Windows OSI stack used by legacy MMS-EASE, AX-S4 MMS, AX-S4 ICCP, and ICCP Toolkit versions. Certain network traffic can crash the process. Business impact is availability loss, especially if these components support operational communications. Exposure is most likely in legacy Windows deployments running the named SISCO MMS or ICCP components. Internet exposure is not stated in the sources; risk depends on whether the OSI stack receives untrusted network traffic. Treat as an availability risk for legacy operational systems, not as confirmed active exploitation. Prioritize discovery and network containment first, then confirm vendor remediation options for any still-deployed affected versions. Mitigation focus: Inventory Windows hosts for the listed SISCO MMS-EASE, AX-S4, and ICCP Toolkit versions.; Check SISCO or CERT guidance for vendor-supported updates, workarounds, or replacement paths.; Restrict network access to affected OSI, MMS, or ICCP services to trusted management segments..

Prepared

Jun 29, 2026, 10:19 UTC (UTC+00:00)

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