CVE-2026-40400
Medium
Elevated severity or exploit probability.
CVSS base
8.0
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.9%
57.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-23
Published 2026-07-14 · modified 2026-09-17
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | R | Required |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2026-07-14 — Published (NVD)
- 2026-09-17 — Last modified (NVD)
Description
Relative path traversal in Windows PowerShell allows an authorized attacker to execute code over a network.