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CVE-2026-19442— Vulnerabilities in IBM AIX and PowerVM VIOS

Quick assessment

Affected
IBM AIX
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 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版本存在缓冲区错误漏洞，该漏洞源于AIX Virtual SCSI (vSCSI) initiator driver存在指针验证缺陷，成功利用可能导致拒绝服务、权限提升或完全破坏客户端LPAR内核。

CVSS 8.2 · High EPSS 0.12% · P2

Affected Version Matrix 3

VendorProduct Version RangeStatus
IBM AIX 7.2 affected
7.3 affected
IBM PowerVM VIOS 4.1 affected
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I. Basic Information for CVE-2026-19442

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 has a pointer validation flaw exists in the AIX Virtual SCSI (vSCSI) initiator driver. Successful exploitation may result in denial of service, privilege escalation, or full compromise of the client LPAR kernel.
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
非可信指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
IBM AIX 缓冲区错误漏洞
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版本存在缓冲区错误漏洞，该漏洞源于AIX Virtual SCSI (vSCSI) initiator driver存在指针验证缺陷，成功利用可能导致拒绝服务、权限提升或完全破坏客户端LPAR内核。
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 AIX 7.2 cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:*
IBM PowerVM VIOS 4.1 cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19442

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III. Intelligence Information for CVE-2026-19442

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Other References for CVE-2026-19442 (1)

Same Patch Batch · IBM · 2026-08-20 · 75 CVEs total

CVE-2026-18835 9.9 CRITICAL Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-17160 9.8 CRITICAL Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-17157 9.8 CRITICAL Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-17040 9.8 CRITICAL Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-17152 9.8 CRITICAL Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-17145 9.8 CRITICAL Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-17142 9.8 CRITICAL Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-17141 9.8 CRITICAL Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-17136 9.8 CRITICAL Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-17122 9.8 CRITICAL Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-17118 9.8 CRITICAL Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-17422 9.3 CRITICAL Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-16926 9.1 CRITICAL Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-17436 8.8 HIGH Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-16996 8.8 HIGH Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-18832 8.8 HIGH Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-19449 8.8 HIGH Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-16934 8.8 HIGH Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-16932 8.8 HIGH Vulnerabilities in IBM AIX and PowerVM VIOS
CVE-2026-16936 8.8 HIGH Vulnerabilities in IBM AIX and PowerVM VIOS

Showing top 20 of 75 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: AIX
Same vendor: IBM
Same weakness: CWE-822

V. Comments for CVE-2026-19442

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