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CVE-2026-11885— Power System update in Buffer Copy

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 powervm hypervisor是美国IBM公司的一款企业级虚拟化管理程序。 IBM powervm hypervisor FW1110.00至FW1110.20版本、FW1060.00至FW1060.71版本和FW950.00至FW950.H1版本存在缓冲区错误漏洞，该漏洞源于特制的OS管理程序调用，可能导致PowerVM管理程序崩溃或破坏OS内存完整性。

CVSS 8.4 · High EPSS 0.15% · P3

Affected Version Matrix 3

VendorProduct Version RangeStatus
IBM PowerVM Hypervisor FW1110.00≤ FW1110.20 affected
FW1060.00≤ FW1060.71 affected
FW950.00≤ FW950.H1 affected
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I. Basic Information for CVE-2026-11885

Vulnerability Information
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Vulnerability Title
Power System update in Buffer Copy
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
IBM powervm hypervisor 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM powervm hypervisor是美国IBM公司的一款企业级虚拟化管理程序。 IBM powervm hypervisor FW1110.00至FW1110.20版本、FW1060.00至FW1060.71版本和FW950.00至FW950.H1版本存在缓冲区错误漏洞，该漏洞源于特制的OS管理程序调用，可能导致PowerVM管理程序崩溃或破坏OS内存完整性。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM PowerVM Hypervisor FW1110.00 ~ FW1110.20 cpe:2.3:a:ibm:powervm_hypervisor:fw1110.00:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-11885

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III. Intelligence Information for CVE-2026-11885

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Vendor Advisories for CVE-2026-11885 (1)

Same Patch Batch · IBM · 2026-07-30 · 35 CVEs total

CVE-2026-12946 9.9 CRITICAL Remote Code Execution in CUGA Component CodeAgent
CVE-2026-13435 9.9 CRITICAL Python Interpreter Sandbox Bypass Leading to Sensitive Data Exposure
CVE-2026-15435 9.8 CRITICAL IBM App Connect Enterprise is vulnerable to arbitrary file write vulnerability
CVE-2026-12943 9.8 CRITICAL This Power Hardware Management Console update is being released to address
CVE-2026-12118 9.8 CRITICAL IBM webMethods Integration could allow an unauthenticated remote attacker to execute arbit
CVE-2026-12940 9.8 CRITICAL Langflow is affected by remote code execution due to multiple unauthenticated and insuffic
CVE-2026-11707 9.3 CRITICAL Multiple vulnerabilities have been identified in IBM WebSphere Application Server shipped
CVE-2026-14522 8.8 HIGH IBM App Connect Enterprise is vulnerable to an arbitrary file read and arbitrary changes t
CVE-2026-11536 8.5 HIGH IBM WebSphere Application Server is affected by a remote code execution vulnerability
CVE-2026-10535 8.4 HIGH IBM® Db2® is vulnerable to buffer overflow in setgid helper db2flacc which can lead to pri
CVE-2026-14980 8.3 HIGH IBM WebSphere Application Server Liberty is affected by a cross-site request forgery
CVE-2026-14519 7.5 HIGH IBM App Connect Enterprise is vulnerable to an arbitrary file read and arbitrary changes t
CVE-2024-25039 7.5 HIGH IBM Engineering Requirements Management DOORS and DOORS Web Access is affected by multiple
CVE-2026-10545 7.5 HIGH IBM Planning Analytics Local is affected by Open Redirect
CVE-2026-12733 7.5 HIGH IBM DataPower Gateway affected by denial of service
CVE-2026-12942 7.5 HIGH Langflow is affected by path traversal due to multiple unauthenticated and insufficiently
CVE-2026-9322 7.5 HIGH IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by
CVE-2026-16308 7.5 HIGH IBM Enterprise Build of Quarkus is affected by a DoS vulnerability
CVE-2026-10842 7.5 HIGH IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by
CVE-2026-11897 7.5 HIGH IBM WebSphere Application Server Liberty is affected by a denial of service vulnerability

Showing top 20 of 35 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: PowerVM Hypervisor
Same vendor: IBM
Same weakness: CWE-120

V. Comments for CVE-2026-11885

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