Answer in brief
CVE-2026-16890 records a Low severity (CVSS 3.6) vulnerability in Vulnerabilities in IBM AIX and PowerVM VIOS. The current sources do not mark it as known exploited. The current feed maps IBM/AIX (generic), IBM/PowerVM VIOS (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 3.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps IBM/AIX (generic), IBM/PowerVM VIOS (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| IBM/AIXgeneric | 7.2 || 7.3 | Not reported |
| IBM/PowerVM VIOSgeneric | 4.1 | Not reported |
Published upstream
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 20, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 19, 2026
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to obtain sensitive information or cause a denial of service due to an integer overflow.
Quoted source text, attributed separately from HOL analysis.