CVE-2026-11885: Power System update in Buffer Copy
A carefully crafted OS hypervisor call can cause the PowerVM hypervisor to crash or compromise OS memory integrity.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
IBM PowerVM Hypervisor firmwareto a version that resolves this vulnerability.Patch FW1060.72(1060_171) - Upgrade
Upgrade
IBM PowerVM Hypervisor firmwareto a version that resolves this vulnerability.Patch FW1060.80(1060_180) - Upgrade
Upgrade
IBM PowerVM Hypervisor firmwareto a version that resolves this vulnerability.Patch FW1110.30(1110_125) - Upgrade
Upgrade
IBM PowerVM Hypervisor firmwareto a version that resolves this vulnerability.Patch FW1110.30(1110_145) - Upgrade
Upgrade
IBM PowerVM Hypervisor firmwareto a version that resolves this vulnerability.Patch FW950.H2(950_222) - Upgrade
Upgrade
IBM PowerVM Hypervisor firmwareto a version that resolves this vulnerability.Patch FW1060.72(1060_177) - Upgrade
Upgrade
IBM PowerVM Hypervisor firmwareto a version that resolves this vulnerability.Patch FW1060.80(1060_185)
Event History
Frequently Asked Questions
What is the severity of CVE-2026-11885?
CVE-2026-11885 has a severity score of 8.4, indicating a high level of risk.
What vulnerabilities are addressed by CVE-2026-11885?
CVE-2026-11885 addresses a vulnerability in the IBM PowerVM hypervisor that can lead to a crash or compromise of OS memory integrity.
How can I mitigate the risks associated with CVE-2026-11885?
To mitigate the risks of CVE-2026-11885, ensure that you update to the latest firmware versions of the IBM PowerVM Hypervisor.
What are the affected versions in CVE-2026-11885?
CVE-2026-11885 affects IBM PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H1.
Is there a workaround for CVE-2026-11885 before applying a fix?
Currently, there are no known effective workarounds for CVE-2026-11885, so updating to the latest version is recommended.