CVE-2026-17142: CWE-287 Improper Authentication in IBM AIX
Description
CVE-2026-17142 is a critical improper authentication vulnerability affecting IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS version 4.1. This flaw could allow a remote attacker to execute arbitrary commands without authentication. The vulnerability has a high CVSS score of 9.8, indicating severe impact on confidentiality, integrity, and availability. No patch or remediation details are provided in the available data.
CVSS v3.1
Score 9.8critical
Affected software
IBM
AIX
IBM
PowerVM VIOS
cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:*cpe:2.3:a:ibm:aix:7.2.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:*cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:*cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-17142) involves improper authentication in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. Due to this flaw, a remote attacker can execute arbitrary commands on affected systems without any authentication, posing a critical security risk. The CVSS v3.1 base score is 9.8, reflecting network attack vector, low attack complexity, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently provided.
Potential Impact
Successful exploitation allows remote unauthenticated attackers to execute arbitrary commands, potentially leading to full system compromise, including loss of confidentiality, integrity, and availability of the affected systems.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict network access to affected systems and monitor for suspicious activity related to command execution attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T17:18:10.637Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a877ac3acd9273b4930259e
Added to database: 08/20/2026, 22:08:03 UTC
Last enriched: 09/10/2026, 20:31:56 UTC
Last updated: 10/05/2026, 06:48:14 UTC
Views: 30
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