CVE-2018-9838: Ocaml

Critical severity, CVSS 9.8. EPSS: 4.1% chance of exploitation in the next 30 days.

The caml_ba_deserialize function in byterun/bigarray.c in the standard library in OCaml 4.06.0 has an integer overflow which, in situations where marshalled data is accepted from an untrusted source, allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via a crafted object.

Affected products

• Ocaml Ocaml: version 4.06.0 only

Published 2018-04-06. Last modified 2026-06-17.