CVE-2026-16866
Low
No strong exploitation signal.
CVSS base
4.8
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
EPSS — probability of exploitation (30 days)
0.3%
19.3th percentile
CISA KEV
Not listed
Weakness / dates
CWE-125
Published 2026-08-19 · modified 2026-08-20
CVSS breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
| Attack Vector | N | Network |
| Attack Complexity | H | High |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | N | None |
| Integrity | L | Low |
| Availability | L | Low |
Timeline
- 2026-08-19 — Published (NVD)
- 2026-08-20 — Last modified (NVD)
Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to an out-of-bounds read.