CVE-2026-16816
CriticalCVSS 9.9Exploitation Probability (EPSS)
Elevated risk54th percentile - higher than 54% of all known CVEs
Summary
IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 could allow a remote authenticated attacker to execute arbitrary commands due to improper neutralization of special elements used in an OS command.
Risk Assessment
An authenticated attacker can execute arbitrary commands on the system, potentially leading to full system compromise or data theft.
Recommendation
Apply security patches provided by IBM for AIX and VIOS. Restrict user privileges and monitor system activity.
Other vulnerabilities in IBM AIX
See all- CVE-2016-3053High
IBM AIX contains an unspecified vulnerability that allows a locally authenticated user to obtain root level privileges.
- CVE-2026-18835Critical
IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 could allow a remote authenticated attacker to execute arbitrary commands due to improper neutralization of special elements used in an OS command.
- CVE-2026-17422Critical
IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to execute arbitrary code due to a buffer overflow.
- CVE-2026-17160Critical
IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to an integer overflow during size computation.
- CVE-2026-17157Critical
IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a stack buffer overflow.
- CVE-2026-17152Critical
IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a buffer overflow.
- CVE-2026-17145Critical
IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to improper privilege management.
- CVE-2026-17142Critical
IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary commands due to improper authentication.
- CVE-2026-17141Critical
IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a buffer overflow.
- CVE-2026-17136Critical
IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a format string vulnerability.
Original NVD description (English source)
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote authenticated attacker to execute arbitrary commands due to improper neutralization of special elements used in an OS command.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS