CVE-2026-16917: CWE-190 Integer Overflow or Wraparound in IBM AIX
CVE-2026-16917 is a critical integer overflow vulnerability in IBM AIX versions 7.2 and 7.3, and IBM PowerVM VIOS 4.1. This flaw could allow a remote attacker to execute arbitrary code without requiring user interaction or privileges. The vulnerability is due to an integer overflow or wraparound condition. No official patch or remediation information is currently provided by the vendor. The vulnerability has a CVSS score of 9.8, indicating a high impact on confidentiality, integrity, and availability.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-16917) affects IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. It is caused by an integer overflow or wraparound (CWE-190) that could be exploited remotely to execute arbitrary code. The CVSS 3.1 base score is 9.8 with vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. The vendor has not published a patch or official remediation guidance at this time.
Potential Impact
Successful exploitation could lead to remote code execution with full impact on system confidentiality, integrity, and availability. This means an attacker could potentially take full control of affected systems running IBM AIX 7.2, 7.3, or IBM PowerVM VIOS 4.1 without authentication or user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor IBM security advisories for updates. No vendor-provided mitigations or workarounds are currently documented.
CVE-2026-16917: CWE-190 Integer Overflow or Wraparound in IBM AIX
Description
CVE-2026-16917 is a critical integer overflow vulnerability in IBM AIX versions 7.2 and 7.3, and IBM PowerVM VIOS 4.1. This flaw could allow a remote attacker to execute arbitrary code without requiring user interaction or privileges. The vulnerability is due to an integer overflow or wraparound condition. No official patch or remediation information is currently provided by the vendor. The vulnerability has a CVSS score of 9.8, indicating a high impact on confidentiality, integrity, and availability.
CVSS v3.1
Score 9.8critical
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 (CVE-2026-16917) affects IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. It is caused by an integer overflow or wraparound (CWE-190) that could be exploited remotely to execute arbitrary code. The CVSS 3.1 base score is 9.8 with vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. The vendor has not published a patch or official remediation guidance at this time.
Potential Impact
Successful exploitation could lead to remote code execution with full impact on system confidentiality, integrity, and availability. This means an attacker could potentially take full control of affected systems running IBM AIX 7.2, 7.3, or IBM PowerVM VIOS 4.1 without authentication or user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor IBM security advisories for updates. No vendor-provided mitigations or workarounds are currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T06:51:32.376Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a860d1aacd9273b498f9c50
Added to database: 08/19/2026, 20:07:54 UTC
Last enriched: 08/19/2026, 20:22:11 UTC
Last updated: 08/19/2026, 20:22:11 UTC
Views: 3
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