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9.8
CVE-2026-16919: IBM AIX and PowerVM VIOS allow remote code execution
CVE-2026-16919 · published 2 months ago
Summary
The AIX 7.2 and 7.3 operating systems and PowerVM VIOS 4.1 can be tricked by a malicious network message into running unwanted code. This could let an attacker take control of the server remotely. Apply the latest security patches from IBM as soon as possible to close the gap.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| ibm | aix |
7.2 >= 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 |
| ibm | powervm vios | 4.1 |
| 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 cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* |
Original advisory text
Vulnerabilities in IBM AIX and PowerVM 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 improper validation of network-supplied pointers.
References
- https://www.ibm.com/support/pages/node/7283858 Patch Vendor Advisory
Internet-facing
3 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically
- Gives an attacker full control
Type
CWE-843Type Confusion
Timeline
Published19 Aug 2026
Updated4 Nov 2026
First seen19 Aug 2026
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