Ocaml: Security Vulnerabilities
In OCaml through 4.14.3, Bigarray.reshape allows an integer overflow, and resultant reading of arbitrary memory, when untrusted data is processed.
CVSS Score
5.9
EPSS Score
0.0
Published
2026-03-27
In OCaml before 4.14.3 and 5.x before 5.4.1, a buffer over-read in Marshal deserialization (runtime/intern.c) enables remote code execution through a multi-phase attack chain. The vulnerability stems from missing bounds validation in the readblock() function, which performs unbounded memcpy() operations using attacker-controlled lengths from crafted Marshal data.
CVSS Score
7.9
EPSS Score
0.0
Published
2026-02-27
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.
CVSS Score
9.8
EPSS Score
0.081
Published
2018-04-06
OCaml compiler allows attackers to have unspecified impact via unknown vectors, a similar issue to CVE-2017-9772 "but with much less impact."
CVSS Score
7.8
EPSS Score
0.002
Published
2017-09-07
Insufficient sanitisation in the OCaml compiler versions 4.04.0 and 4.04.1 allows external code to be executed with raised privilege in binaries marked as setuid, by setting the CAML_CPLUGINS, CAML_NATIVE_CPLUGINS, or CAML_BYTE_CPLUGINS environment variable.
CVSS Score
9.8
EPSS Score
0.01
Published
2017-06-23
OCaml before 4.03.0 does not properly handle sign extensions, which allows remote attackers to conduct buffer overflow attacks or obtain sensitive information as demonstrated by a long string to the String.copy function.
CVSS Score
9.1
EPSS Score
0.038
Published
2016-06-13
The postgresql-ocaml bindings 1.5.4, 1.7.0, and 1.12.1 for PostgreSQL libpq do not properly support the PQescapeStringConn function, which might allow remote attackers to leverage escaping issues involving multibyte character encodings.
CVSS Score
7.5
EPSS Score
0.004
Published
2009-10-22