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Vulnerability record · CVE-2018-9838 · published 6 April 2018

CVE-2018-9838: Ocaml integer overflow vulnerability

Ocaml · Ocaml

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.

9.8 CVSS 3.0 Critical EPSS 4.1% · top 9.5% CWE-190 · Integer overflow
9.8CVSS 3.0 base score, v2 7.5
4.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://caml.inria.fr/mantis/view.php?id=7765 Issue TrackingVendor Advisory
https://security.gentoo.org/glsa/202007-48
https://caml.inria.fr/mantis/view.php?id=7765 Issue TrackingVendor Advisory
https://security.gentoo.org/glsa/202007-48

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2017-9772Ocaml vulnerabilityInsufficient sanitisation in the OCaml compiler versions 4.04.0 and 4.04.1 allows external code to be executed with raised privilege in binaries mark…EPSS 3.5%9.1CVE-2015-8869Fedoraproject fedora memory buffer overflow vulnerabilityOCaml before 4.03.0 does not properly handle sign extensions, which allows remote attackers to conduct buffer overflow attacks or obtain sensitive in…EPSS 5.3%7.8CVE-2026-28364Ocaml out-of-bounds read vulnerabilityIn 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…EPSS 0.32%7.8CVE-2017-9779Ocaml vulnerabilityOCaml compiler allows attackers to have unspecified impact via unknown vectors, a similar issue to CVE-2017-9772 "but with much less impact."EPSS 0.58%5.1CVE-2026-34353Ocaml integer overflow vulnerabilityIn OCaml through 4.14.3, Bigarray.reshape allows an integer overflow, and resultant reading of arbitrary memory, when untrusted data is processed.EPSS 0.15%8.4CVE-2025-48595Android Framework integer overflow enables local code executionAn integer overflow in multiple locations of the Android Framework can be turned into code execution. It allows a local attacker to escalate privileg…KEVEPSS 1.7%analysed7.8CVE-2021-30952Apple WebKit integer overflow allows code execution via crafted web contentAn integer overflow in Apple's WebKit engine was fixed by improved input validation across tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS/iPadOS 15…KEVEPSS 7.0%analysed7.8CVE-2026-21385Qualcomm chipset firmware memory corruption via alignment integer overflowA memory corruption flaw in Qualcomm chipset firmware arises from an integer overflow when alignments are used for memory allocation (CWE-190). It af…KEVEPSS 1.2%analysed

Source: NIST National Vulnerability Database (record CVE-2018-9838), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.