CVE-2026-19783

mediumCVSS 6.7covered by 1 sourcefirst seen 2026-08-20

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.

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Exploitation outlook

Low exploitation risk0.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.

Advisory coverage (1)

mediumCVE-2026-19783: IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause kernel mem…nvd · 2026-08-20

External references

NVD record for CVE-2026-19783

CVE.org record

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