CVE-2026-16946 — HIGH (7.8)

Vulnerability Description

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to gain elevated privileges due to a heap buffer overflow.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-787

References

https://www.ibm.com/support/pages/node/7283858

FAQ

What is CVE-2026-16946?

CVE-2026-16946 is a vulnerability with a CVSS score of 7.8 (HIGH). IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to gain elevated privileges due to a heap buffer overflow.

How severe is CVE-2026-16946?

CVE-2026-16946 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-16946?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.