CVE-2026-19783
Vulnerabilities in IBM AIX and PowerVM VIOS
At a glance Severity MEDIUM 6.7 EPSS EPSS 0.16 % · percentile 5 (2026-10-27) State PUBLISHED Published 2026-08-20 Updated 2026-08-26 Assigner ibm NVD status Analyzed Description IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause kernel memory corruption due to insufficient validation. A crafted filesystem image can trigger an out-of-bounds kernel-stack write during directory reads, causing a system crash or potentially enabling privilege escalation.
Scores Version Score Vector Scored by CVSS 3.1 MEDIUM 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H ibm CVSS 3.1 MEDIUM 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H NVD · psirt@us.ibm.com (Secondary) CVSS 3.1 HIGH 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H NVD · nvd@nist.gov (Primary)
Weaknesses (CWE)
European references
CERT-FR advisories
Affected configurations (NVD CPE) cpe: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 < 4.1.2.20cpe: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 ≤ 7.3.4.1Affected products
References
Sources
