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Linux Distros Unpatched Vulnerability : CVE-2026-33554

high Nessus Plugin ID 303520

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.

 - ipmi-oem in FreeIPMI before 1.16.17 has exploitable buffer overflows on response messages. The Intelligent Platform Management Interface (IPMI) specification defines a set of interfaces for platform management. It is implemented by a large number of hardware manufacturers to support system management. It is most commonly used for sensor reading (e.g., CPU temperatures through the ipmi-sensors command within FreeIPMI) and remote power control (the ipmipower command). The ipmi-oem client command implements a set of a IPMI OEM commands for specific hardware vendors. If a user has supported hardware, they may wish to use the ipmi-oem command to send a request to a server to retrieve specific information. Three subcommands were found to have exploitable buffer overflows on response messages. They are: ipmi-oem dell get-last-post- code - get the last POST code and string describing the error on some Dell servers, ipmi-oem supermicro extra-firmware-info - get extra firmware info on Supermicro servers, and ipmi-oem wistron read- proprietary-string - read a proprietary string on Wistron servers. (CVE-2026-33554)

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-2026-33554

https://security-tracker.debian.org/tracker/CVE-2026-33554

Plugin Details

Severity: High

ID: 303520

File Name: unpatched_CVE_2026_33554.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 3/25/2026

Updated: 3/25/2026

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.5

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

CVSS Score Source: CVE-2026-33554

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.9

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:freeipmi-ipmiseld, cpe:/o:debian:debian_linux:11.0, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:centos:centos:freeipmi-bmc-watchdog, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:freeipmi, cpe:/o:redhat:enterprise_linux:9, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:freeipmi-ipmidetectd, p-cpe:/a:centos:centos:freeipmi-ipmiseld, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:centos:centos:freeipmi, p-cpe:/a:centos:centos:freeipmi-ipmidetectd, cpe:/o:centos:centos:7, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:freeipmi, p-cpe:/a:redhat:enterprise_linux:freeipmi-devel, p-cpe:/a:redhat:enterprise_linux:freeipmi-bmc-watchdog, p-cpe:/a:centos:centos:freeipmi-devel, cpe:/o:debian:debian_linux:14.0

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/24/2026

Reference Information

CVE: CVE-2026-33554