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FreeIPMI CVE-2026-85504

| EUVDEUVD-2026-70881 CRITICAL
Stack-based Buffer Overflow (CWE-121)
2026-09-04 mitre GHSA-pgr6-2jvx-924f
Buffer Overflow Stack Overflow Red Hat 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

Client-side overflow requires the victim to query a malicious/compromised Fujitsu BMC (UI:R) and attacker control of that BMC's SEL response (AC:H); code exec yields full C/I/A impact.

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:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SUSE
8.8 HIGH
AV:N/AC:L/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 - 04:46 vuln.today
CVE Published
Sep 04, 2026 - 04:14 cve.org
CRITICAL 9.8

DescriptionCVE.org

FreeIPMI before 1.6.19 has a stack-based buffer overflow in _ipmi_sel_oem_fujitsu_get_sel_entry_long_text in libfreeipmi/sel/ipmi-sel-string-fujitsu-irmc-common.c via malformed Fujitsu SEL long-text responses.

AnalysisAI

Stack-based buffer overflow in GNU FreeIPMI before 1.6.19 lets a malicious or compromised Fujitsu iRMC BMC corrupt client memory when the FreeIPMI tooling parses malformed Fujitsu SEL 'long text' responses in _ipmi_sel_oem_fujitsu_get_sel_entry_long_text. Successful exploitation can crash the client or execute arbitrary code in the context of the process reading the System Event Log (typically ipmi-sel or libfreeipmi consumers). …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires the FreeIPMI client/library to retrieve and parse a System Event Log from a Fujitsu iRMC BMC that returns a malformed 'long text' SEL response - i.e. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The published CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N, C:H/I:H/A:H = 9.8) treats this as a trivially remote unauthenticated critical, but the description points to a client-side parsing bug: the overflow triggers when FreeIPMI parses a malformed Fujitsu SEL long-text response, which requires the victim to query the SEL of an attacker-controlled or compromised Fujitsu iRMC BMC (or a machine-in-the-middle on the IPMI session). … 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 Vendor-released patch: upgrade to FreeIPMI 1.6.19 (https://ftp.gnu.org/gnu/freeipmi/freeipmi-1.6.19.tar.gz) or the equivalent distribution package once it incorporates the 1.6.19 fix; rebuild any software statically linking libfreeipmi. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Immediately identify systems running vulnerable FreeIPMI versions by querying installed packages (rpm -qa | grep freeipmi). …

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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-2026-85504 vulnerability details – vuln.today
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