Is CVE-2026-18842 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-18842?

CVE-2026-18842 has a CVSS v3 severity of HIGH (8.4).

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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 an out-of-bounds write.