CVE-2026-96266— IBM Power Systems Firmware Buffer Overflow
Quick assessment
Affected
IBM PowerVM Hypervisor
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
IBM Power Systems 固件 FW1060.00 至 FW1060.81 存在一个漏洞，该漏洞影响主机固件配置解析功能。具有 FSP（故障处理处理器）认证服务级访问权限的攻击者可以写入特制的配置数据，在系统初始加载（IPL）期间的主机固件引导阶段引发内存损坏，从而破坏主机固件引导栈以及随后由其加载的 hypervisor。成功利用该漏洞将导致受管系统的机密性、完整性和可用性受到影响。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| IBM | PowerVM Hypervisor | FW1060.00≤ FW1060.81 |
affected |
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I. Basic Information for CVE-2026-96266
Vulnerability Information
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Vulnerability Title
IBM Power Systems Firmware Buffer Overflow
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability in host firmware configuration parsing. An attacker with authenticated service-level access to the FSP can write specially crafted configuration data to cause memory corruption in the host firmware boot stage during system IPL, 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| IBM | PowerVM Hypervisor | FW1060.00 ~ FW1060.81 |
cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00:*:*:*:*:*:*:*
|
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II. Public POCs for CVE-2026-96266
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-96266 (1)
Same Patch Batch · IBM · 2026-10-12 · 61 CVEs total
| CVE-2026-96119 | 9.9 CRITICAL | IBM i is Affected By An Improper Control of Code Generation Vulnerability in HTTP Server A |
| CVE-2026-96012 | 9.9 CRITICAL | IBM Db2 Mirror for i Privilege Escalation |
| CVE-2026-90920 | 9.8 CRITICAL | Maximo AI Service Code Injection |
| CVE-2026-82101 | 9.6 CRITICAL | DataStage on Cloud Pak for Data Path Traversal |
| CVE-2026-82103 | 9.6 CRITICAL | DataStage on Cloud Pak for Data Information Disclosure |
| CVE-2026-82110 | 9.6 CRITICAL | DataStage on Cloud Pak for Data Path Traversal |
| CVE-2026-105465 | 8.8 HIGH | IBM® Db2® is vulnerable to privilege escalation when db2ssh is enabled with the db2 instan |
| CVE-2026-19620 | 8.8 HIGH | IBM Planning Analytics Local is affected by security vulnerabilities |
| CVE-2026-19622 | 8.8 HIGH | IBM Planning Analytics Local is affected by security vulnerabilities |
| CVE-2026-102627 | 8.8 HIGH | Security Vulnerability identified in IBM TRIRIGA - Zip Slip |
| CVE-2026-82096 | 8.8 HIGH | DataStage on Cloud Pak for Data Command Injection |
| CVE-2026-82108 | 8.8 HIGH | DataStage on Cloud Pak for Data Code Injection |
| CVE-2026-105464 | 8.8 HIGH | IBM® Db2® is vulnerable to a local attacker with DBADM authorization gaining elevated priv |
| CVE-2026-18529 | 8.7 HIGH | IBM Maximo Application Suite - Location Service for Esri Component Code Execution |
| CVE-2026-18537 | 8.7 HIGH | IBM Maximo Application Suite - Location Service for Esri Component Code Execution |
| CVE-2026-93886 | 8.3 HIGH | IBM i is Affected By An Improper Neutralization of Input Vulnerability in HTTP Server Admi |
| CVE-2026-96262 | 8.2 HIGH | IBM Power Systems Firmware Buffer Overflow |
| CVE-2026-19627 | 8.2 HIGH | IBM Planning Analytics Local is affected by security vulnerabilities |
| CVE-2026-96265 | 8.2 HIGH | IBM Power Systems Firmware Improper Memory Buffer Restriction |
| CVE-2026-96264 | 8.2 HIGH | IBM Power Systems Firmware Buffer Overflow |
Showing top 20 of 61 CVEs. View all on vendor page → →
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