Affects IBM AIX/PowerVM—widely used enterprise OS/virtualization; remote code execution can lead to full server compromise and widespread disruption.
CVE-2026-16882
Remote OS command injection in IBM AIX/PowerVM allowing arbitrary command execution.
Is CVE-2026-16882 being exploited?
Not confirmed. CVE-2026-16882 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.55% probability of exploitation in the next 30 days.
How severe is CVE-2026-16882?
CVE-2026-16882 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-16882?
Yes. A fix has been recorded for CVE-2026-16882. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-16882 affect?
CVE-2026-16882 affects IBM AIX 7.2, IBM AIX 7.3, IBM PowerVM VIOS 4.1. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-16882?
Isolate affected hosts, restrict access, audit logs, and apply IBM patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote OS command injection enabling arbitrary command execution and full system compromise; attacker can execute commands as root remotely.
Immediate action required
- affected7.2
- affected7.3
- affected4.1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.