IBM Power Systems Firmware Improper Memory Buffer Restriction
IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the FSP can send a specially crafted mailbox message to read or modify arbitrary regions of Hostboot memory, compromising the host firmware boot stack and the hypervisor subsequently loaded by it. Successful exploitation results in a confidentiality, integrity, and availability impact to the managed system.
CVE-2026-96265
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-96265
PowerVM Hypervisor
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"cpes": [
"cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00.0:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:powervm_hypervisor:fw1060.81:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:powervm_hypervisor:fw1060.81.0:*:*:*:*:*:*:*"
],
"vendor": "IBM",
"product": "PowerVM Hypervisor",
"versions": [
{
"status": "affected",
"version": "FW1060.00",
"versionType": "semver",
"lessThanOrEqual": "FW1060.81"
}
]
}
]- Related CVEs
- CVE-2026-96265
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #17233 · Revision 1
- Added to Heist Feed
- Publisher date