Detections
Analytics
Linux Distros Unpatched Vulnerability : CVE-2026-28364
high Nessus Plugin ID 300178
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Synopsis
The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.Description
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.- 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. (CVE-2026-28364)
Note that Nessus relies on the presence of the package as reported by the vendor.
Solution
There is no known solution at this time.See Also
https://access.redhat.com/security/cve/cve-2026-28364
Plugin Details
Severity: High
ID: 300178
File Name: unpatched_CVE_2026_28364.nasl
Version: 1.5
Type: local
Agent: unix
Family: Misc.
Published: 3/2/2026
Updated: 3/16/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.8
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2026-28364
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7.1
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C
Vulnerability Information
CPE: p-cpe:/a:centos:centos:ocaml-compiler-libs, cpe:/o:debian:debian_linux:11.0, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:centos:centos:ocaml-source, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:centos:centos:ocaml-labltk-devel, p-cpe:/a:redhat:enterprise_linux:ocaml-labltk-devel, p-cpe:/a:redhat:enterprise_linux:ocaml, p-cpe:/a:redhat:enterprise_linux:ocaml-ocamldoc, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:centos:centos:ocaml-ocamldoc, cpe:/o:canonical:ubuntu_linux:25.10, p-cpe:/a:centos:centos:ocaml-emacs, cpe:/o:redhat:enterprise_linux:9, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:redhat:enterprise_linux:ocaml-labltk, p-cpe:/a:redhat:enterprise_linux:ocaml-source, cpe:/o:centos:centos:8, p-cpe:/a:debian:debian_linux:ocaml, p-cpe:/a:redhat:enterprise_linux:ocaml-camlp4, p-cpe:/a:centos:centos:ocaml-x11, p-cpe:/a:centos:centos:ocaml-runtime, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:redhat:enterprise_linux:ocaml-emacs, p-cpe:/a:centos:centos:ocaml-camlp4-devel, p-cpe:/a:redhat:enterprise_linux:ocaml-rpm-macros, p-cpe:/a:redhat:enterprise_linux:ocaml-compiler-libs, p-cpe:/a:centos:centos:ocaml-camlp4, p-cpe:/a:centos:centos:ocaml-labltk, p-cpe:/a:redhat:enterprise_linux:ocaml-x11, p-cpe:/a:redhat:enterprise_linux:ocaml-docs, cpe:/o:centos:centos:7, p-cpe:/a:redhat:enterprise_linux:ocaml-runtime, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:centos:centos:ocaml-docs, p-cpe:/a:canonical:ubuntu_linux:ocaml, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:redhat:enterprise_linux:ocaml-camlp4-devel, p-cpe:/a:centos:centos:ocaml, p-cpe:/a:centos:centos:ocaml-rpm-macros
Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier
Exploit Ease: No known exploits are available
Vulnerability Publication Date: 2/27/2026
Reference Information
CVE: CVE-2026-28364