High [CVE-2026-85504] Arbitrary code execution via malformed Fujitsu System Event Log responses
This high-severity Red Hat Linux advisory covers CVE-2026-85504 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7.
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Summary
A flaw was found in FreeIPMI. This vulnerability, a stack-based buffer overflow, could allow a remote attacker to achieve arbitrary code execution.
The flaw occurs when FreeIPMI processes specially crafted Fujitsu System Event Log (SEL) long-text responses, leading to a system compromise. Exploitation requires an attacker to provide specially crafted SEL data, which may involve user interaction to trigger the vulnerable code path.
Red Hat severity: Important — CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). Weakness: CWE-121.
Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Will not fix / out of support: Red Hat Enterprise Linux 6.
Red Hat does not currently list a fixing RHSA for this CVE.
Affected products named by the advisory: Red Hat package: freeipmi.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 58 minutes ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 58 minutes ago·verify at source
Mitigation checklist
- Restrict IPMI and BMC access to a dedicated, trusted management network so FreeIPMI SEL tools cannot reach untrusted or compromised Fujitsu controllers. Please do not run ipmi-sel with OEM interpretation (--interpret-oem-data) against untrusted BMCs, and do not enable interpret-oem-data in ipmiseld for those hosts. If Fujitsu OEM long-text SEL decoding is not required, leave that option off.
Official advisory · high-confidence parse· fetched 58 minutes ago·verify at source
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