USN-8613-1: FreeIPMI vulnerabilities

unknownCVE-2026-33554 CVE-2026-50031

Zhihan Zheng discovered that FreeIPMI had several buffer overflow vulnerabilities in ipmi-oem response message handling. A local attacker with control a malicious IPMI device or simulator could possibly cause FreeIPMI to crash, resulting in a denial of service. (CVE-2026-33554, CVE-2026-50031)

CSIRTS triage

vendor: FreeIPMI product: FreeIPMI Denial of service

What: Several buffer overflow vulnerabilities could cause FreeIPMI to crash.
Who is affected: Local attackers with control over a malicious IPMI device or simulator.
Urgency: Remediation is necessary to prevent denial of service.
Action: Apply updates as they become available.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch FreeIPMI

Get an email when a new FreeIPMI advisory drops — max one per day, one-click unsubscribe.

Details

Source: Ubuntu Security Notices (INTL · vendor-psirt · site)
Severity: unknown
Published: 2026-07-27
Exploitation: Not in CISA KEV at last sync

Original advisory: https://ubuntu.com/security/notices/USN-8613-1

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-335540.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all scored CVEs.
Low exploitation riskCVE-2026-500310.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 32% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-33554	coverage & exploitation status	NVD · CVE.org
CVE-2026-50031	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.