CVE-2012-4857: Buffer overflow in IBM Informix 11.50 through 11.50.xC9W2 and 11.70 before 11.70.xC7 allows remote authenti...

Security readout for executives and security teams

This issue affects older IBM Informix database versions. An authenticated remote user could send a crafted SQL statement that triggers a buffer overflow and may execute code on the database server. The business risk is highest where legacy Informix is still reachable by application accounts, partners, or broad internal user groups. Exposure is likely limited to organizations still running affected IBM Informix 11.50 or 11.70 builds. Risk depends on who can authenticate to the database service, including application service accounts, internal users, or externally connected systems. Treat this as a high-priority legacy database risk if affected Informix systems remain in production. The main decision is whether vulnerable database servers still support important business applications and whether authenticated access is tightly controlled. Mitigation focus: Inventory IBM Informix versions and identify 11.50 through 11.50.xC9W2 or 11.70 before 11.70.xC7.; Move 11.70 deployments to 11.70.xC7 or later where IBM guidance applies.; Check IBM advisory guidance for the appropriate remediation path for 11.50 deployments..

Prepared

Jun 24, 2026, 12:04 UTC (UTC+00:00)

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