Out-of-bounds Read in IBM Power Systems Firmware

CVE-2026-16828

IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the ASMI web interface. An unauthenticated attacker on the management network can cause the ASMI web server to crash with possible memory corruption and generate an error log; hosted partitions are not affected. The ASMI web interface will restart automatically; however, repeated exploitation could result in a sustained loss of access to the ASMI management interface, resulting in an integrity and availability impact.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-16828?
CVE-2026-16828 is a high-severity vulnerability in IBM Power Systems Firmware, classified under Out-of-bounds Read. CVSS score: 7.6/10. Published 2026-08-19.
How severe is CVE-2026-16828?
High severity. CVSS v3 base score is 7.6 out of 10.