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important · Firmware — PowerVM

An unauthenticated adjacent-network peer can make affected IBM PowerVM firmware disclose sensitive information.

Affects

IBM PowerVM Hypervisor firmware on listed IBM Power 9, Power 10, and Power 11 servers.

IBM attributes the disclosure to an out-of-bounds read but does not identify the protocol, listening service or returned data.

Detail and 2 sources
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Saturday, September 26, 2026