CVE-2026-16852: CWE-190 Integer Overflow or Wraparound in IBM AIX
Description
CVE-2026-16852 is a high-severity vulnerability affecting IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1. It involves an integer overflow or wraparound condition that could be exploited remotely to cause a denial of service (DoS). No confidentiality or integrity impacts are reported. There is no indication of active exploitation in the wild. Patch status is not confirmed from the provided data.
CVSS v3.1
Score 7.5high
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, identified as CWE-190 (Integer Overflow or Wraparound), exists in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. A remote attacker could trigger an integer overflow condition leading to a denial of service. The CVSS v3.1 base score is 7.5, reflecting a network attack vector with no privileges or user interaction required, and resulting in availability impact only. No vendor advisory or patch information is provided.
Potential Impact
An attacker can remotely cause a denial of service on affected IBM AIX and PowerVM VIOS systems by exploiting an integer overflow vulnerability. There is no reported impact on confidentiality or integrity. The denial of service could disrupt availability of affected systems.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch or official fix is available, monitor IBM security advisories for updates. No specific mitigations are provided in the input data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T03:24:17.373Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a860991acd9273b498b4c2d
Added to database: 08/19/2026, 19:52:49 UTC
Last enriched: 09/11/2026, 05:47:27 UTC
Last updated: 10/04/2026, 10:02:25 UTC
Views: 48
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