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CVE-2026-16656— Vulnerabilities in IBM AIX and PowerVM VIOS

CVSS 9.8 · Critical EPSS 0.72% · P51

Possible ATT&CK Techniques 1AI

T1078 · Valid Accounts

Affected Version Matrix 3

VendorProductVersion RangeStatus
IBMAIX7.2affected
7.3affected
IBMPowerVM VIOS4.1affected
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I. Basic Information for CVE-2026-16656

Vulnerability Information
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Vulnerability Title
Vulnerabilities in IBM AIX and PowerVM VIOS
Source: CVE Program / CVE List V5
Vulnerability Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to gain root privileges due to improper authentication.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
IBM AIX 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM aix是美国IBM公司的一款企业级Unix操作系统。 IBM AIX 7.2版本和7.3版本以及IBM PowerVM VIOS 4.1版本存在安全漏洞，该漏洞源于身份验证不当，可能导致远程攻击者获得root权限。
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

VendorProductAffected VersionsCPESubscribe
IBMAIX 7.2 cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:*
IBMPowerVM VIOS 4.1 cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-16656

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III. Intelligence Information for CVE-2026-16656

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Other References for CVE-2026-16656 (1)

Same Patch Batch · IBM · 2026-08-19 · 107 CVEs total

CVE-2026-150689.9 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-168169.9 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-169199.8 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-169179.8 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-169139.8 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-168349.8 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-168409.8 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-168459.8 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-168629.8 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-168949.8 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-168859.8 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-168829.8 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-168649.8 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-168729.8 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-166879.6 CRITICALPower System Buffer Overflow
CVE-2026-168359.6 CRITICALPower System Improper Certificate Validation
CVE-2026-169039.6 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-168399.4 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-168229.3 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-150659.1 CRITICALVulnerabilities in IBM AIX and PowerVM VIOS

Showing top 20 of 107 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: AIX
Same vendor: IBM
Same weakness: CWE-287

V. Comments for CVE-2026-16656

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