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Dell CVE-2026-33554

| EUVDEUVD-2026-14899 HIGH
Stack-based Buffer Overflow (CWE-121)
2026-03-24 mitre GHSA-382w-q5p9-3f2h
Buffer Overflow Dell Stack Overflow
7.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SUSE
HIGH
qualitative
Red Hat
8.8 MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

5
Re-analysis Queued
Apr 27, 2026 - 19:22 vuln.today
cvss_changed
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
EUVD ID Assigned
Mar 24, 2026 - 14:45 euvd
EUVD-2026-14899
Analysis Generated
Mar 24, 2026 - 14:45 vuln.today
CVE Published
Mar 24, 2026 - 00:00 nvd
HIGH 7.5

DescriptionCVE.org

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."

AnalysisAI

FreeIPMI versions before 1.16.17 contain exploitable buffer overflow vulnerabilities in the ipmi-oem command's response message handling for three vendor-specific subcommands: Dell's get-last-post-code, Supermicro's extra-firmware-info, and Wistron's read-proprietary-string. An attacker who can intercept or control IPMI server responses could trigger these buffer overflows to achieve arbitrary code execution on systems running vulnerable versions of FreeIPMI. No CVSS score, EPSS data, or public exploitation confirmation is currently available, but the vulnerabilities are documented in Savannah bug reports with clear technical details.

Technical ContextAI

FreeIPMI is a free and open-source in-band and out-of-band IPMI implementation used for hardware platform management across Dell, Supermicro, Wistron, and other vendors. The ipmi-oem subcommand implements OEM-specific IPMI extensions that allow users to issue vendor-defined commands to retrieve system information such as POST codes and firmware details. The root cause is improper input validation and buffer management (CWE-120: Buffer Copy without Checking Size of Input) in the response message parsing logic for these three subcommands. When an IPMI server returns a specially crafted response message, the fixed-size stack or heap buffers in ipmi-oem are overflowed without bounds checking, allowing memory corruption. The vulnerability affects FreeIPMI as identified in the GNU FreeIPMI project (see CPE and distribution at https://ftp.gnu.org/gnu/freeipmi/).

RemediationAI

Upgrade FreeIPMI to version 1.16.17 or later immediately. This patch addresses all three buffer overflow conditions in the ipmi-oem response parsing logic. Most Linux distributions should provide updated packages; check your package manager or the GNU FreeIPMI project repository at https://ftp.gnu.org/gnu/freeipmi/. Until patching is possible, restrict network access to IPMI interfaces by limiting connections to trusted administrative networks and disabling the ipmi-oem subcommand if vendor-specific OEM queries are not required for operations. Consider using firewall rules or out-of-band access controls to isolate IPMI interfaces from untrusted networks. Do not rely on workarounds as a long-term mitigation; patching is required to close the buffer overflow attack surface.

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Vendor StatusVendor

Debian

freeipmi
Release Status Fixed Version Urgency
bullseye vulnerable 1.6.6-4+deb11u1 -
bookworm vulnerable 1.6.10-1 -
trixie vulnerable 1.6.15-1 -
forky, sid vulnerable 1.6.16-1 -
(unstable) fixed (unfixed) -

SUSE

Severity: High
Product Status
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise Server 16.0 Affected
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed
SUSE Linux Enterprise Module for Basesystem 15 SP7 Fixed

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CVE-2026-33554 vulnerability details – vuln.today
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