What is CVE-2026-17427?

CVE-2026-17427 is a medium-severity vulnerability in IBM Openbmc, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2026-11-08.

How severe is CVE-2026-17427?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in IBM Openbmc

CVE-2026-17427

IBM Power Systems Firmware FW1060.00 through FW1060.81, OP940.00 through OP940.A2, OP910.00 through OP910.95, and OP940.00 through OP940.82 could allow a remote attacker to cause a denial of service due to improper validation of input length.

Published 2026-11-08 · last modified 2026-11-08.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

CWE-617 — Reachable Assertion

References

www.ibm.com/support/pages/node/7294278 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-17427?: CVE-2026-17427 is a medium-severity vulnerability in IBM Openbmc, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2026-11-08.
How severe is CVE-2026-17427?: Medium severity. CVSS v3 base score is 6.5 out of 10.