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FreeIPMI CVE-2026-85507

| EUVDEUVD-2026-70885 CRITICAL
Stack-based Buffer Overflow (CWE-121)
2026-09-04 mitre GHSA-pcp5-vqr5-x65j
Buffer Overflow Stack Overflow Dell 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
8.8 HIGH

Client-side parser overflow: attacker supplies data over the network but the operator must run the tool against a hostile BMC, so UI:R; code execution on the client yields C:H/I:H/A:H.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/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 - 05:06 vuln.today
CVE Published
Sep 04, 2026 - 04:18 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_info in ipmi-oem/ipmi-oem-dell.c (cmc-info subcommand to dell get-system-info).

AnalysisAI

Stack-based buffer overflow in FreeIPMI's ipmi-oem utility (all versions before 1.6.19) can corrupt memory in the client host when the 'dell get-system-info cmc-info' subcommand parses a CMC info response, potentially leading to code execution in the context of the operator running the tool. The flaw lives in the response-handling routine _output_dell_system_info_cmc_info (ipmi-oem/ipmi-oem-dell.c), so it is triggered by the data returned from the queried BMC/CMC rather than by an inbound network request. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires the victim to run the FreeIPMI 'ipmi-oem dell get-system-info cmc-info' subcommand against an IPMI endpoint the attacker controls or can intercept (a malicious/compromised Dell CMC/BMC, or a MITM on the management network); the overflow fires during parsing of the device's cmc-info response. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The supplied CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H = 9.8) treats this as a fully remote, unauthenticated, zero-interaction network attack, but the description shows the overflow occurs while ipmi-oem parses a response from a Dell CMC/BMC - meaning an operator must actively run the command against an attacker-controlled or MITM-positioned IPMI device. … 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: FreeIPMI 1.6.19 - upgrade to 1.6.19 or later, available 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, inventory all systems running FreeIPMI prior to version 1.6.19 and identify which management hosts execute the ipmi-oem 'dell get-system-info cmc-info' subcommand. …

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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-2026-85507 vulnerability details – vuln.today
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