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CVE-2026-96264— 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 固件版本 FW1060.00 至 FW1060.81 在服务处理器邮箱接口（service processor mailbox interface）中存在一个漏洞。具有经过认证的服务级访问权限的攻击者可以向功能支持处理器（FSP）发送特制的邮箱消息，从而溢出主机固件运行时属性存储区，导致在主机固件运行时环境中执行任意代码。这使得攻击者能够完全访问受管系统的内存和硬件接口，从而对受管系统的机密性、完整性和可用性造成严重影响。

CVSS 8.2 · High
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I. Basic Information for CVE-2026-96264

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 the service processor mailbox interface. An attacker with authenticated service-level access to the FSP can send a specially crafted mailbox message to overflow host firmware runtime attribute storage, allowing arbitrary code to be executed in the host firmware runtime. This gives the attacker full access to the managed system's memory and hardware interfaces, resulting 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:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-96264

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III. Intelligence Information for CVE-2026-96264

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Vendor Advisories for CVE-2026-96264 (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-2026-96266 8.2 HIGH IBM Power Systems Firmware Buffer Overflow
CVE-2026-96265 8.2 HIGH IBM Power Systems Firmware Improper Memory Buffer Restriction

Showing top 20 of 61 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: PowerVM Hypervisor
Same vendor: IBM
Same weakness: CWE-121

V. Comments for CVE-2026-96264

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