CVE-2026-17436

critical

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a heap-based buffer overflow.

Vendor / product: Ibm — vios

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a heap-based buffer overflow.

CVSS

9.8

9.8 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity source: NVD CVSS v3.1 (nvd@nist.gov)

Timeline (UTC)

Published: 2026-08-20 22:17

Modified: 2026-10-26 10:10

NVD status: Analyzed

Last synced 2 days ago

Verified against the source API 2026-10-27 07:07 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

ibm / vios ≥4.1.0 <4.1.0.50, ≥4.1.1.0 <4.1.1.30, ≥4.1.2.0 <4.1.2.20

ibm / aix ≥7.2.5 ≤7.2.5.212, ≥7.3.2 ≤7.3.2.5, ≥7.3.3 ≤7.3.3.2, ≥7.3.4 ≤7.3.4.1

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

NVD CVE API 2.0 — fetched 2026-10-27 07:07 UTC · record ↗