CVE-2026-85508 Memory corruption in FreeIPMI

Critical 9.8 Published Updated

A stack-based buffer overflow in FreeIPMI allows attackers to execute arbitrary code or cause denial of service via crafted IPMI responses.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-85508?

CVE-2026-85508 is a critical memory corruption vulnerability in FreeIPMI, published on 4 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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).

Weakness: CWE-121

Which versions are affected by CVE-2026-85508?

How do I fix CVE-2026-85508?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-85508 being exploited?

There is no known exploitation of CVE-2026-85508 in the wild and no public exploit code.

Sources

Also known as AZL-99104, BELL-CVE-2026-85508, DEBIAN-CVE-2026-85508, GHSA-g7hg-9x6v-q9jm, UBUNTU-CVE-2026-85508.

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