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FreeIPMI CVE-2026-85508

| EUVDEUVD-2026-70886 CRITICAL
Stack-based Buffer Overflow (CWE-121)
2026-09-04 mitre GHSA-g7hg-9x6v-q9jm
Buffer Overflow Stack Overflow Red Hat Dell Suse Freeipmi
Critical
Disputed · 9.8 Vendor: mitre
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Severity by source

Sources disagree (Medium–Critical)
Vendor (mitre) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
7.5 HIGH

Overflow is in client-side parsing of a device response, so the operator must run the subcommand (UI:R) against an attacker-controlled/MITM'd BMC (AC:H); successful exploitation yields code execution on the host (C/I/A:H).

3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SUSE
7.5 HIGH
AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Red Hat
7.5 MEDIUM
qualitative

vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.

CVSS VectorVendor: mitre

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Patch available
Sep 04, 2026 - 06:01 EUVD
Analysis Generated
Sep 04, 2026 - 05:06 vuln.today
CVE Published
Sep 04, 2026 - 04:20 cve.org
CRITICAL 9.8

DescriptionCVE.org

ipmi-oem in FreeIPMI before 1.6.19 has a stack-based buffer overflow in _output_dell_system_info_cmc_ipv6_info in ipmi-oem/ipmi-oem-dell.c (cmc-ipv6-info subcommand to dell get-system-info).

AnalysisAI

Stack-based buffer overflow in GNU FreeIPMI's ipmi-oem tool (before 1.6.19) affects the _output_dell_system_info_cmc_ipv6_info routine reached through the 'dell get-system-info cmc-ipv6-info' subcommand. Because the flaw lies in code that parses the response returned by a Dell CMC/BMC, an attacker who controls (or can MITM) the IPMI device an operator queries can corrupt the client's stack and potentially execute code on the management host. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Requires that an operator invoke the ipmi-oem Dell OEM subcommand 'dell get-system-info cmc-ipv6-info' against a device that returns attacker-controlled data - i.e., a malicious or compromised Dell CMC/BMC, or an attacker positioned to tamper with (MITM) the IPMI response on the management network. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The NVD CVSS of 9.8 (AV:N/AC:L/PR:N/UI:N) treats this as a trivially remote, unauthenticated network overflow, but the vulnerable code is client-side response-parsing: the overflow only fires when an operator runs the ipmi-oem Dell subcommand against a device whose response is attacker-controlled. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade to FreeIPMI 1.6.19 or later (Vendor-released patch: 1.6.19), obtained from https://ftp.gnu.org/gnu/freeipmi/freeipmi-1.6.19.tar.gz or via your distribution's updated package. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: identify all systems running FreeIPMI versions before 1.6.19 managing Dell CMC/BMC infrastructure, and immediately restrict IPMI network access through firewall rules limiting connections to authorized management networks only. …

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Same weakness CWE-121 – Stack-based Buffer Overflow

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Vendor StatusVendor

SUSE

Severity: Important
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise High Performance Computing 12 Affected
SUSE Linux Enterprise Module for Basesystem 15 SP7 Affected
SUSE Linux Enterprise Server 15 SP7 Affected
SUSE Linux Enterprise Server 16.0 Affected

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CVE-2026-85508 vulnerability details – vuln.today
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