CVE-2026-16891: CWE-125 Out-of-bounds Read in IBM AIX
CVE-2026-16891 is an out-of-bounds read vulnerability in IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1. This flaw could allow a local attacker to read sensitive information from memory. The vulnerability has a low CVSS score of 3.3, indicating limited impact. There is no information about an official patch or remediation at this time.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-125 (Out-of-bounds Read), affects IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. It allows a local attacker with low privileges to read sensitive information due to improper bounds checking. The CVSS 3.1 base score is 3.3, reflecting a low severity impact with confidentiality impact only. No official fix or remediation level has been published yet.
Potential Impact
A local attacker could obtain sensitive information from memory due to an out-of-bounds read. There is no indication of impact on integrity or availability. The confidentiality impact is limited, and the overall severity is low.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround has been published at this time.
CVE-2026-16891: CWE-125 Out-of-bounds Read in IBM AIX
Description
CVE-2026-16891 is an out-of-bounds read vulnerability in IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1. This flaw could allow a local attacker to read sensitive information from memory. The vulnerability has a low CVSS score of 3.3, indicating limited impact. There is no information about an official patch or remediation at this time.
CVSS v3.1
Score 3.3low
Affected software
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, identified as CWE-125 (Out-of-bounds Read), affects IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. It allows a local attacker with low privileges to read sensitive information due to improper bounds checking. The CVSS 3.1 base score is 3.3, reflecting a low severity impact with confidentiality impact only. No official fix or remediation level has been published yet.
Potential Impact
A local attacker could obtain sensitive information from memory due to an out-of-bounds read. There is no indication of impact on integrity or availability. The confidentiality impact is limited, and the overall severity is low.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround has been published at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T05:09:45.567Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a860d18acd9273b498f9c26
Added to database: 08/19/2026, 20:07:52 UTC
Last enriched: 08/19/2026, 20:23:09 UTC
Last updated: 08/20/2026, 02:24:51 UTC
Views: 5
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