CVE-2026-19783

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause kernel memory corruption due to insufficient validation. A crafted filesystem image can trigger an out-of-bounds kernel-stack write during directory reads, causing a system crash or potentially enabling privilege escalation.

CVSS v3 6.7 MEDIUM

6.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

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

Configuration 2 (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::::::::

History

26 Oct 2026, 10:10

Type	Values Removed	Values Added
Summary		(es) IBM AIX 7.2 y 7.3 e IBM PowerVM VIOS 4.1 podría permitir a un atacante local causar corrupción de memoria del kernel debido a una validación insuficiente. Una imagen de sistema de archivos manipulada puede desencadenar una escritura fuera de límites en la pila del kernel durante lecturas de directorio, causando una caída del sistema o potencialmente permitiendo la escalada de privilegios.

Information

Published : 2026-08-20 22:17

Updated : 2026-10-26 10:10

NVD link : CVE-2026-19783

Mitre link : CVE-2026-19783

CVE.ORG link : CVE-2026-19783

JSON object : View

Products Affected

ibm

aix
vios

CWE

CWE-787

Out-of-bounds Write

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