Description
An exploitable denial-of-service vulnerability exists in the 802.11w security state handling for hostapd 2.6 connected clients with valid 802.11w sessions. By simulating an incomplete new association, an attacker can trigger a deauthentication against stations using 802.11w, resulting in a denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | W1.f1 | hostapd version 2.6 on a Raspberry Pi. | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | wpa | No fix yet | — |
| Debian 13 | wpa | No fix yet | — |
| Debian 12 | wpa | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | wpa | No fix yet | — |
| Ubuntu 26.04 LTS | wpa | No fix yet | — |
| Ubuntu 25.10 | wpa | No fix yet | — |
| Ubuntu 24.04 LTS | wpa | No fix yet | — |
| Ubuntu 22.04 LTS | wpa | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | wpa | No fix yet | — |
| Ubuntu 18.04 LTS | wpa | No fix yet | — |
| Ubuntu 16.04 LTS | wpa | No fix yet | — |
| Ubuntu Pro 14.04 LTS | wpa | No fix yet | — |