CVE-2026-17423: CWE-125 Out-of-bounds Read in IBM AIX
Description
CVE-2026-17423 is an out-of-bounds read vulnerability (CWE-125) affecting IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1. This flaw could allow a remote attacker to obtain sensitive information and cause a denial of service. The vulnerability has a high severity with a CVSS score of 7.7. No patch or vendor advisory information is provided regarding remediation status.
CVSS v3.1
Score 7.7high
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 involves an out-of-bounds read in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. An attacker with local access could exploit this flaw to read memory outside the intended bounds, potentially leaking sensitive information and causing a denial of service condition. The CVSS 3.1 vector indicates low attack complexity, no privileges required, no user interaction, and impacts confidentiality and availability.
Potential Impact
Successful exploitation can lead to disclosure of sensitive information and denial of service on affected systems running IBM AIX 7.2, 7.3, or IBM PowerVM VIOS 4.1. The vulnerability does not impact integrity. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-25T06:04:07.489Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a877ac5acd9273b493025c4
Added to database: 08/20/2026, 22:08:05 UTC
Last enriched: 09/10/2026, 20:02:10 UTC
Last updated: 10/05/2026, 06:48:14 UTC
Views: 42
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