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8.4

IBM PowerVM Hypervisor Buffer Copy Crash Risk

CVE-2026-11885 · published 3 months ago
Summary

IBM PowerVM Hypervisor software has a security issue that could cause it to crash or allow unauthorized access to system memory. This is a concern for organizations that rely on PowerVM Hypervisor for their IT infrastructure. IBM should be notified to confirm if a patch or update is available to address this issue.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
ibm powervm hypervisor <= FW1110.20
Original advisory text
IBM PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H1 A carefully crafted OS hypervisor call can cause the PowerVM hypervisor to crash or co...
IBM PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H1 A carefully crafted OS hypervisor call can cause the PowerVM hypervisor to crash or compromise OS memory integrity.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
8.4 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-120Classic Buffer Overflow
Timeline
Published30 Jul 2026
Updated26 Oct 2026
First seen30 Jul 2026
Sources
CVE-2026-11885 · NVD
CVE-2026-11885 · MITRE
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