CVE-2026-18835
Medium
Elevated severity or exploit probability.
CVSS base
9.9
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.6%
46.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-78
Published 2026-08-20 · modified 2026-08-25
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | C | Changed |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2026-08-20 — Published (NVD)
- 2026-08-25 — Last modified (NVD)
Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote authenticated attacker to execute arbitrary commands due to improper neutralization of special elements used in an OS command.