CVE-2026-16687: critical vulnerability in IBM Power Systems Firmware
Power System Buffer Overflow
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.6epss 0.3%
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.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
IBM · Power Systems FirmwareRelated CVEs — IBM Power Systems Firmware
In the same product, most dangerous first.
CVE-2026-16835CRITICALPower System Improper Certificate ValidationEPSS 0.4%CVE-2026-16832HIGHPower System Buffer OverflowEPSS 0.3%CVE-2026-16828HIGHPower System Out-of-bounds ReadEPSS 0.3%CVE-2026-16938MEDIUMPower System Missing AuthorizationEPSS 0.2%CVE-2026-16930HIGHPower System Missing AuthorizationEPSS 0.2%CVE-2026-16933HIGHPower System Integer OverflowEPSS 0.2%