ReviewHigh

CVE-2026-14970

IBM AIX, PowerVM VIOS, vios

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 NIM server process is crashing during client registration due to buffer overflow.

PRIORITY ASSESSMENT

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.27%

Technical severityCVSS 7.5

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 NIM server process is crashing during client registration due to buffer overflow.

Product: IBM AIX, PowerVM VIOS, vios
Affected versions: >= 7.2, >= 7.3, >= 4.1, >= 4.1.0 < 4.1.0.50, >= 4.1.1.0 < 4.1.1.30, >= 4.1.2.0 < 4.1.2.20, >= 7.2.5 <= 7.2.5.212, >= 7.3.2 <= 7.3.2.5, >= 7.3.3 <= 7.3.3.2, >= 7.3.4 <= 7.3.4.1
Fixed versions: 4.1.0.50, 4.1.1.30, 4.1.2.20

Confirm exposure before applying a vendor-supported change.

1
Identify
Confirm that IBM AIX, PowerVM VIOS, vios and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.