IBMCVE-2026-16821
IBM AIX: privilege escalation
High7.0CVE-2026-16821 · Published Aug 28, 2026 · updated Sep 2, 2026
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to gain elevated privileges due to a format string vulnerability.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| AIX Product | <= 7.2 | No fix yet |
| <= 7.3 | No fix yet | |
| PowerVM VIOS Product | <= 4.1 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-134
More IBM advisories
All IBM| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 28 | IBM Concert: SQL injection | Critical9.1 | No fix yet |
| Aug 28 | IBM Cloud Pak for Data System: denial of service | Medium6.2 | No fix yet |
| Aug 28 | IBM Langflow OSS: path traversal | High7.5 | No fix yet |
| Aug 28 | IBM Langflow OSS: information disclosure | High8.2 | No fix yet |
| Aug 28 | IBM Langflow OSS: remote code execution | Critical9.8 | No fix yet |
| Aug 28 | IBM Langflow OSS: improper authorization | Medium6.4 | No fix yet |