CVE-2017-9772: Insufficient sanitisation in the OCaml compiler versions 4.04.0 and 4.04.1 allows external code to be execu...

Security readout for executives and security teams

OCaml 4.04.0 and 4.04.1 can let environment variables cause external code to run inside setuid binaries, potentially with elevated privileges. The issue matters most where OCaml-built setuid programs exist. The provided sources do not report active exploitation. Exposure appears narrow but serious: systems using OCaml 4.04.0 or 4.04.1 where OCaml-built binaries are marked setuid. Environments without setuid OCaml binaries are less likely to be directly exposed based on the provided description. Prioritize review if the organization builds or runs OCaml-based privileged utilities. The business risk is local privilege escalation, not broad remote compromise, but affected setuid binaries should be treated as urgent. Mitigation focus: Inventory OCaml compiler versions 4.04.0 and 4.04.1 across build and runtime environments.; Identify OCaml-built binaries with setuid permissions and remove setuid where it is not required.; Follow OCaml and distribution vendor guidance for fixed packages or supported upgrades..

Prepared

Jun 13, 2026, 04:43 UTC (UTC+00:00)

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