IBMCVE-2026-16877
IBM AIX: remote code execution
High8.8CVE-2026-16877 · Published Aug 19, 2026 · updated Aug 20, 2026
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote authenticated attacker to execute arbitrary code due to a stack-based buffer overflow.
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:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-121
More IBM advisories
All IBM| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 19 | IBM DS8900F (R9.4): information disclosure | High7.4 | No fix yet |
| Aug 19 | IBM DS8900F: authenticated user could create a user with privileged user | High7.5 | No fix yet |
| Aug 19 | IBM DS8900F (R9.4): authenticated user could read or modify another user's | Medium5.4 | No fix yet |
| Aug 19 | IBM PowerVM Hypervisor Platform KeyStore | Medium5.1 | No fix yet |
| Aug 19 | IBM PowerVM Hypervisor: local attacker could decrypt encrypted data | Medium5.3 | No fix yet |
| Aug 19 | IBM go-slug: local attacker could bypass | Medium5.5 | No fix yet |