Detections
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OCaml <= 4.14.3 Integer Overflow Information Disclosure (CVE-2026-34353)

medium Nessus Plugin ID 305878

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Synopsis

The remote host is affected by an information disclosure vulnerability.

Description

The version of OCaml installed on the remote host is prior to or equal to 4.14.3. It is, therefore, affected by an information disclosure vulnerability:

 - An integer overflow in Bigarray.reshape allows reading of arbitrary memory when untrusted data is processed. (CVE-2026-34353)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

See vendor advisory.

See Also

https://github.com/advisories/GHSA-6p45-jv22-32gp

https://github.com/ocaml/ocaml/issues/14655

https://github.com/ocaml/ocaml/pull/14674

Plugin Details

Severity: Medium

ID: 305878

File Name: ocaml_CVE-2026-34353.nasl

Version: 1.3

Type: Local

Agent: unix

Family: Misc.

Published: 4/10/2026

Updated: 4/15/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-34353

CVSS v3

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 4.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 3.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:inria:ocaml

Required KB Items: installed_sw/OCaml

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/27/2026

Reference Information

CVE: CVE-2026-34353

IAVA: 2026-A-0299