CVE-2026-16838

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to overwrite critical files and obtain sensitive information due to a time-of-check to time-of-use (TOCTOU) race condition.

CVSS v3 7.0 HIGH

7.0^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.ibm.com/support/pages/node/7283858	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:ibm:aix::::::::
	cpe:2.3:o:ibm:aix::::::::
	cpe:2.3:o:ibm:aix::::::::
	cpe:2.3:o:ibm:aix::::::::

Configuration 2 (hide)

OR	cpe:2.3:a:ibm:vios::::::::
	cpe:2.3:a:ibm:vios::::::::
	cpe:2.3:a:ibm:vios::::::::

History

No history.

Information

Published : 2026-08-19 20:17

Updated : 2026-08-26 15:16

NVD link : CVE-2026-16838

Mitre link : CVE-2026-16838

CVE.ORG link : CVE-2026-16838

JSON object : View

Products Affected

ibm

aix
vios

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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