CVE Catalog

CVE-2026-19783

MediumCVSS 6.7
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.11%

2th percentile - higher than 2% of all known CVEs

Summary

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.

Risk Assessment

The vulnerability can lead to system crash (denial of service) or privilege escalation, posing a serious threat to system integrity and confidentiality.

Recommendation

Apply security patches provided by IBM for AIX and PowerVM VIOS. Restrict local access to trusted users only.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS