CVE-2026-18716: CWE-125 Out-of-bounds Read in IBM AIX
Description
CVE-2026-18716 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 authenticated attacker to access sensitive information or cause a denial of service. The vulnerability has a high severity rating with a CVSS score of 7.9. No specific patch or remediation details are provided in the available data.
CVSS v3.1
Score 7.9high
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 remote authenticated access could exploit this flaw to obtain sensitive information or trigger a denial of service condition. The CVSS 3.1 vector indicates low attack complexity and no user interaction is required, but privileges are required and the scope is changed. The impact includes confidentiality loss and high impact on availability.
Potential Impact
Exploitation of this vulnerability can lead to unauthorized disclosure of sensitive information and denial of service on affected systems. The attacker must be authenticated and have local or remote access. The vulnerability affects system confidentiality and availability but does not impact integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is provided in the available data. Users should monitor IBM advisories for updates and apply patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-08-03T16:11:44.837Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a877ac7acd9273b493025ec
Added to database: 08/20/2026, 22:08:07 UTC
Last enriched: 09/10/2026, 19:47:24 UTC
Last updated: 10/05/2026, 06:48:14 UTC
Views: 44
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