Back to CVE records
High 8.2Published Aug 20, 2026
CVE-2026-18840Vulnerabilities in IBM AIX and PowerVM VIOS
Updated under an hour ago ()
Does this affect you?
It affects IBM AIX and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Start free and add your stack
Free account, 1 product
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to execute arbitrary code due to improper validation of an attacker-controlled pointer.
- CVSS
- 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-822
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- ibm
- NVD analysis
- Analyzed
- Record last updated
- Aug 22, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
IBM AIX ibm:aix | 7.2; 7.3 | CNA record |
IBM PowerVM VIOS ibm:powervm_vios | 4.1 | CNA record |
ibm vios ibm:vios | from 4.1.0 before 4.1.0.50; from 4.1.1.0 before 4.1.1.30; from 4.1.2.0 before 4.1.2.20 | NVD |
ibm aix ibm:aix | from 7.2.5 through 7.2.5.212; from 7.3.2 through 7.3.2.5; from 7.3.3 through 7.3.3.2; from 7.3.4 through 7.3.4.1 | NVD |
References
- https://www.ibm.com/support/pages/node/7283858vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.