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CVE-2026-16855 Details
Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause a denial of service due to a heap buffer overflow.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 20, 2026Exploitation: NoneAutomatable: NoTechnical Impact: Partial
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.ibm.com/support/pages/node/7283858 | [email protected] | PatchVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| 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 |
CPE
Remediation
| |
| 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
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 24, 2026 | Initial Analysis | [email protected] |
| Aug 20, 2026 | CVE Modified | CISA-ADP |
| Aug 19, 2026 | New CVE Received | [email protected] |