CVE-2026-17152: CWE-787 Out-of-bounds Write in IBM AIX
Description
CVE-2026-17152 is a critical buffer overflow vulnerability (CWE-787) 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 execute arbitrary code without any privileges or user interaction. The vulnerability has a high CVSS score of 9.8, indicating severe impact on confidentiality, integrity, and availability.
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 is an out-of-bounds write (buffer overflow) in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. It allows remote attackers to execute arbitrary code due to improper handling of memory boundaries. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) indicates that exploitation requires no privileges or user interaction and can be performed over the network, resulting in full system compromise.
Potential Impact
Successful exploitation can lead to remote code execution with full system impact, compromising confidentiality, integrity, and availability of affected systems. This could allow attackers to take complete control of vulnerable hosts running the affected IBM AIX or PowerVM VIOS versions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is released, restrict network access to affected systems and monitor for suspicious activity related to this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T17:36:49.079Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a877ac3acd9273b493025a2
Added to database: 08/20/2026, 22:08:03 UTC
Last enriched: 09/10/2026, 20:31:48 UTC
Last updated: 10/05/2026, 06:48:14 UTC
Views: 27
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