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CVE-2026-16819

nvd nist
Published: Aug 19, 2026Modified: Aug 21, 2026

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7.7
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Exploitability: 2.5 / Impact: 5.2
Source: psirt@us.ibm.com (Secondary)

Description

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause a denial of service and compromise data integrity due to a time-of-check time-of-use race condition.

Affected (7)

Products: Ibm: Vios, Aix
Ibm
2 products
Vios
Aix
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Ibm
Vios
From 4.1.0 to 4.1.0.50
Vios
From 4.1.1.0 to 4.1.1.30
Vios
From 4.1.2.0 to 4.1.2.20
Configuration B
4 vulnerable
Vulnerable SoftwareAffected Versions
Ibm
Aix
From 7.2.5 to 7.2.5.212
Aix
From 7.3.2 to 7.3.2.5
Aix
From 7.3.3 to 7.3.3.2
Aix
From 7.3.4 to 7.3.4.1

Related CWEs

CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition
The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.

References (1)

Source: psirt@us.ibm.com
PatchVendor Advisory

Timeline

No history available yet.