CVE-2026-21094
Medium
Elevated severity or exploit probability.
CVSS base
8.8
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.2%
6.0th percentile
CISA KEV
Not listed
Weakness / dates
CWE-20
Published 2026-09-09 · modified 2026-09-11
CVSS breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | A | Adjacent |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2026-09-09 — Published (NVD)
- 2026-09-11 — Last modified (NVD)
Description
Improper input validation in wpa_supplicant prior to SMR Sep-2026 Release 1 allows adjacent attackers to write out-of-bounds memory.