by Kastro
Paper/Archive/CVE-2026-16687

CVE-2026-16687

IBM Power Systems Firmware — Power System Buffer Overflow

EPSS 0.3%CVSS 9.6
critical.is priorityof 100
35
CVSS 9.6 (CNA)9.6 / 10 × 3028.8Not in CISA KEV+300.0EPSS percentile 28.3.283 × 205.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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 with network access can send the FSP a malformed request, allowing arbitrary code execution, giving the attacker full control over the managed system, resulting in a confidentiality, integrity, and availability impact.

Affected

ProductAffectedFixed inSource
Power Systems FirmwareFW1120.00–CNA
Power Systems FirmwareFW1110.00 – FW1110.30–CNA
Power Systems FirmwareFW1060.00 – FW1060.80–CNA
Power Systems FirmwareFW950.00 – FW950.H2–CNA

Scores by source

ibm (CNA)9.6CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

patchibm.com/support/pages/node/7283893