CVE-2026-71338
Low
No strong exploitation signal.
CVSS base
6.4
MEDIUM
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.3%
17.8th percentile
CISA KEV
Not listed
Weakness / dates
CWE-415
Published 2026-09-08 · modified 2026-09-15
CVSS breakdown
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | L | Local |
| Attack Complexity | H | High |
| Privileges Required | H | High |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2026-09-08 — Published (NVD)
- 2026-09-15 — Last modified (NVD)
Description
Double free in Windows Failover Cluster allows an authorized attacker to elevate privileges locally.