CVE-2026-11885
Analyzed Analyzed - Analysis Complete

PowerVM Hypervisor Memory Corruption via Malicious Hypervisor Call

Publication date: 2026-07-30

Last updated on: 2026-08-26

Assigner: IBM Corporation

Description
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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-07-30
Last Modified
2026-08-26
Generated
2026-09-09
AI Q&A
2026-07-31
EPSS Evaluated
2026-09-07
NVD
CVE-2026-11885
EUVD
EUVD-2026-51238

Affected Vendors & Products

Showing 30 associated CPEs
Vendor Product Version / Range
ibm power_system_s1122s_(9824-22b)_firmware From fw1110.00 (inc) to fw1110.30 (exc)
ibm power_system_s1114_(9824-41b)_firmware From fw1110.00 (inc) to fw1110.30 (exc)
ibm power_system_l1122_(9856-22h)_firmware From fw1110.00 (inc) to fw1110.30 (exc)
ibm power_system_l1124_(9856-42h)_firmware From fw1110.00 (inc) to fw1110.30 (exc)
ibm power_system_e1150_(9043-mru)_firmware From fw1110.00 (inc) to fw1110.30 (exc)
ibm power_system_e1080_(9080-hex)_firmware From fw1060.00 (inc) to fw1060.72 (exc)
ibm power_system_s1022_(9105-22a)_firmware From fw1060.00 (inc) to fw1060.72 (exc)
ibm power_system_s1024_(9105-42a)_firmware From fw1060.00 (inc) to fw1060.72 (exc)
ibm power_system_s1022s_(9105-22b)_firmware From fw1060.00 (inc) to fw1060.72 (exc)
ibm power_system_s1014_(9105-41b)_firmware From fw1060.00 (inc) to fw1060.72 (exc)
ibm power_system_l1022_(9786-22h)_firmware From fw1060.00 (inc) to fw1060.72 (exc)
ibm power_system_l1024_(9786-42h)_firmware From fw1060.00 (inc) to fw1060.72 (exc)
ibm power_system_e1050_(9043-mrx)_firmware From fw1060.00 (inc) to fw1060.72 (exc)
ibm power_system_s1012_(9028-21b)_firmware From fw1060.00 (inc) to fw1060.72 (exc)
ibm power_system_e1180_(9080-heu)_firmware From fw1110.00 (inc) to fw1110.30 (exc)
ibm power_system_e980_(9080-m9s)_firmware From fw950.00 (inc) to fw950.h2 (exc)
ibm power_system_l922_(9008-22l)_firmware From fw950.00 (inc) to fw950.h2 (exc)
ibm power_system_s922_(9009-22a)_firmware From fw950.00 (inc) to fw950.h2 (exc)
ibm power_system_s922_(9009-22g)_firmware From fw950.00 (inc) to fw950.h2 (exc)
ibm power_system_h922_(9223-22h)_firmware From fw950.00 (inc) to fw950.h2 (exc)
ibm power_system_h922_(9223-22s)_firmware From fw950.00 (inc) to fw950.h2 (exc)
ibm power_system_s914_(9009-41a)_firmware From fw950.00 (inc) to fw950.h2 (exc)
ibm power_system_s914_(9009-41g)_firmware From fw950.00 (inc) to fw950.h2 (exc)
ibm power_system_s924_(9009-42a)_firmware From fw950.00 (inc) to fw950.h2 (exc)
ibm power_system_s924_(9009-42g)_firmware From fw950.00 (inc) to fw950.h2 (exc)
ibm power_system_h924_(9223-42h)_firmware From fw950.00 (inc) to fw950.h2 (exc)
ibm power_system_h924_(9223-42s)_firmware From fw950.00 (inc) to fw950.h2 (exc)
ibm power_system_e950_(9040-mr9)_firmware From fw950.00 (inc) to fw950.h2 (exc)
ibm power_system_s1122_(9824-22a)_firmware From fw1110.00 (inc) to fw1110.30 (exc)
ibm power_system_s1124_(9824-42a)_firmware From fw1110.00 (inc) to fw1110.30 (exc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-120 The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability affects IBM PowerVM Hypervisor versions FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H1. A specially crafted OS hypervisor call could crash the hypervisor or compromise the memory integrity of the operating system.

Detection Guidance

Detection of this vulnerability requires monitoring for hypervisor crashes or memory integrity issues caused by crafted OS hypervisor calls. Check for unexpected system reboots, error logs in the PowerVM hypervisor, or memory corruption alerts. No specific commands are provided in the available context.

Impact Analysis

The vulnerability could lead to hypervisor crashes, causing service disruptions. It may also allow unauthorized memory access, potentially leading to data leaks or system compromise if exploited by an attacker with local access.

Compliance Impact

This vulnerability could lead to hypervisor crashes or memory integrity compromise, potentially exposing sensitive data processed by affected IBM PowerVM systems. Such incidents may violate compliance requirements under GDPR (data protection) and HIPAA (healthcare data security) by enabling unauthorized access or data breaches.

Mitigation Strategies

Apply the latest firmware updates from IBM for PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H1 to patch the vulnerability.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-11885. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart