CVE-2026-16833: CWE-125 Out-of-bounds Read in IBM AIX
Description
CVE-2026-16833 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 remote attacker to disclose kernel memory. The vulnerability has a medium severity rating with a CVSS score of 5.3. No known exploits are reported in the wild, and no patch or remediation information is currently provided.
CVSS v3.1
Score 5.3medium
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-2026-16833) involves an out-of-bounds read (CWE-125) in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. It allows a remote attacker to read kernel memory, potentially disclosing sensitive information. The CVSS 3.1 base score is 5.3, reflecting a medium impact on confidentiality with no impact on integrity or availability. The attack vector is network-based with no privileges or user interaction required.
Potential Impact
An attacker exploiting this vulnerability could remotely disclose kernel memory contents, potentially exposing sensitive information. There is no impact on system integrity or availability. No active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T02:42:43.163Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a860605acd9273b49871aa6
Added to database: 08/19/2026, 19:37:41 UTC
Last enriched: 09/11/2026, 07:49:24 UTC
Last updated: 10/04/2026, 10:02:25 UTC
Views: 37
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