CVE-2026-16852
Received Received - Intake

Integer Overflow in IBM AIX and PowerVM VIOS

Publication date: 2026-08-19

Last updated on: 2026-08-19

Assigner: IBM Corporation

Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to an integer overflow.

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Meta Information

Published
2026-08-19
Last Modified
2026-08-19
Generated
2026-08-20
AI Q&A
2026-08-19
EPSS Evaluated
N/A
NVD
CVE-2026-16852
EUVD
EUVD-2026-62747

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
ibm aix From 7.2 (inc)
ibm aix From 7.3 (inc)
ibm powervm_vios From 4.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-190 The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

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Executive Summary

This vulnerability in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 allows a remote attacker to cause a denial of service through an integer overflow. This means the attacker could send specially crafted input that causes the system to crash or become unresponsive by exceeding the maximum value a variable can hold.

Impact Analysis

If exploited, this vulnerability could lead to system downtime, disrupting services that rely on the affected IBM AIX or PowerVM VIOS systems. It may cause crashes, slow performance, or complete unavailability of critical applications running on these platforms.

Compliance Impact

This vulnerability could impact compliance by causing service disruptions or data unavailability, which may violate availability requirements in GDPR or HIPAA. Downtime could lead to unauthorized access risks or failure to meet data protection obligations.

Mitigation Strategies

Apply IBM-provided patches or updates for AIX 7.2, 7.3, and PowerVM VIOS 4.1 to address the integer overflow issue. Monitor IBM security advisories for fixes and restrict remote access to affected systems until patched.

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