CVE-2026-16839
Vulnerabilities in IBM AIX and PowerVM VIOS
At a glance Severity CRITICAL 9.4 EPSS EPSS 0.52 % · percentile 44 (2026-10-27) State PUBLISHED Published 2026-08-19 Updated 2026-08-20 Assigner ibm NVD status Analyzed Description IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to obtain sensitive information due to an integer underflow in the IPv4 IP-options parser.
Scores Version Score Vector Scored by CVSS 3.1 CRITICAL 9.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H ibm CVSS 3.1 CRITICAL 9.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H NVD · psirt@us.ibm.com (Secondary)
Weaknesses (CWE)
European references
CERT-FR advisories
Affected configurations (NVD CPE) cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* ≥ 7.2.5 ≤ 7.2.5.212cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* ≥ 7.3.2 ≤ 7.3.2.5cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* ≥ 7.3.3 ≤ 7.3.3.2cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* ≥ 7.3.4 ≤ 7.3.4.1cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* ≥ 4.1.0 < 4.1.0.50cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* ≥ 4.1.1.0 < 4.1.1.30cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* ≥ 4.1.2.0 < 4.1.2.20Affected products
References
Sources
