Description
Wi-Fi Protected Access (WPA and WPA2) allows reinstallation of the Group Temporal Key (GTK) during the four-way handshake, allowing an attacker within radio range to replay frames from access points to clients.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Wi-Fi Alliance | Wi-Fi Protected Access (WPA and WPA2) | WPA, WPA2 | — |
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 | firmware-nonfree | 20180825-1 | — |
| Debian 14 | wpa | 2:2.4-1.1 | — |
| Debian 13 | firmware-nonfree | 20180825-1 | — |
| Debian 13 | wpa | 2:2.4-1.1 | — |
| Debian 12 | firmware-nonfree | 20180825-1 | — |
| Debian 12 | wpa | 2:2.4-1.1 | — |
| Debian 9 | wpa | 2:2.4-1+deb9u1 | DSA-3999-1 |
| Debian 8 | firmware-nonfree | 20161130-4~deb8u1 | DLA-1573-1 |
| Debian 8 | wpa | 2.3-1+deb8u5 | DSA-3999-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | wpa | 1.0-3+deb7u5 | DLA-1150-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | wpa | 2.4-0ubuntu6.2 | USN-3455-1 |
| Ubuntu 14.04 LTS | wpa | 2.1-0ubuntu1.5 | USN-3455-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | wpa_supplicant | 1:2.6-5.el7_4.1 | RHSA-2017:2907 |
| RHEL 6 | wpa_supplicant | 1:0.7.3-9.el6_9.2 | RHSA-2017:2911 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | wpa_supplicant | 2.9-4.20.1 | SUSE-SU-2020:3380-1 |
| SLES 15 SP1 | wpa_supplicant | 2.9-4.20.1 | SUSE-SU-2020:3380-1 |
| SLES 15 | wpa_supplicant | 2.9-4.20.1 | SUSE-SU-2020:3380-1 |
| SLES 12 SP5 | wpa_supplicant | 2.9-23.3.1 | SUSE-SU-2020:3424-1 |
| SLES 12 SP4 | wpa_supplicant | 2.9-15.22.1 | SUSE-SU-2022:1853-1 |
Show 21 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | wpa_supplicant | 2.2-15.3.1 | SUSE-SU-2022:1853-1, SUSE-SU-2017:2745-1 |
| SLES 12 SP2 | wpa_supplicant | 2.2-15.3.1 | SUSE-SU-2022:1853-1, SUSE-SU-2017:2745-1 |
| SLES 12 SP1 | wpa_supplicant | 2.2-15.3.1 | SUSE-SU-2017:2745-1 |
| SLES 12 | wpa_supplicant | 2.2-15.3.1 | SUSE-SU-2017:2745-1 |
| SLES 11 SP4 | wpa_supplicant | 0.7.1-6.18.3.1 | SUSE-SU-2017:2752-1 |
| SLES 11 SP3 | wpa_supplicant | 0.7.1-6.18.3.1 | SUSE-SU-2017:2752-1 |
| SLES for SAP 15 | wpa_supplicant | 2.9-4.20.1 | SUSE-SU-2020:3380-1 |
| SLES for SAP 12 SP5 | wpa_supplicant | 2.9-23.3.1 | SUSE-SU-2020:3424-1 |
| SLES for SAP 12 SP4 | wpa_supplicant | 2.9-15.22.1 | SUSE-SU-2022:1853-1 |
| SLES for SAP 12 SP3 | wpa_supplicant | 2.2-15.3.1 | SUSE-SU-2022:1853-1, SUSE-SU-2017:2745-1 |
| SLES for SAP 12 SP2 | wpa_supplicant | 2.2-15.3.1 | SUSE-SU-2017:2745-1 |
| SLES for SAP 12 SP1 | wpa_supplicant | 2.2-15.3.1 | SUSE-SU-2017:2745-1 |
| SLES for SAP 11 SP4 | wpa_supplicant | 0.7.1-6.18.3.1 | SUSE-SU-2017:2752-1 |
| SLE HPC 15 | wpa_supplicant | 2.9-4.20.1 | SUSE-SU-2020:3380-1 |
| SUSE OpenStack Cloud Crowbar 9 | wpa_supplicant | 2.9-15.22.1 | SUSE-SU-2022:1853-1 |
| SUSE OpenStack Cloud Crowbar 8 | wpa_supplicant | 2.9-15.22.1 | SUSE-SU-2022:1853-1 |
| SUSE OpenStack Cloud 9 | wpa_supplicant | 2.9-15.22.1 | SUSE-SU-2022:1853-1 |
| SUSE OpenStack Cloud 8 | wpa_supplicant | 2.9-15.22.1 | SUSE-SU-2022:1853-1 |
| SUSE OpenStack Cloud 6 | wpa_supplicant | 2.2-15.3.1 | SUSE-SU-2017:2745-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | wpa_supplicant | 0.7.1-6.18.3.1 | SUSE-SU-2017:2752-1 |
| SUSE HPE Helion OpenStack 8 | wpa_supplicant | 2.9-15.22.1 | SUSE-SU-2022:1853-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | hostapd | 2.9-6.2 | openSUSE-SU-2024:10846-1 |
| openSUSE Tumbleweed | wpa_supplicant | 2.9-13.4 | openSUSE-SU-2024:11515-1 |
| openSUSE Leap 15.2 | wpa_supplicant | 2.9-lp152.8.3.1 | openSUSE-SU-2020:2059-1 |
| openSUSE Leap 15.1 | wpa_supplicant | 2.9-lp151.5.10.1 | openSUSE-SU-2020:2053-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | hostapd | 2.6-r2 | — |
| Alpine v3.24 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.23 | hostapd | 2.6-r2 | — |
| Alpine v3.23 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.22 | hostapd | 2.6-r2 | — |
| Alpine v3.22 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.21 | hostapd | 2.6-r2 | — |
| Alpine v3.21 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.20 | hostapd | 2.6-r2 | — |
| Alpine v3.20 | wpa_supplicant | 2.6-r7 | — |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | hostapd | 2.6-r2 | — |
| Alpine v3.19 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.18 | hostapd | 2.6-r2 | — |
| Alpine v3.18 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.17 | hostapd | 2.6-r2 | — |
| Alpine v3.17 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.16 | hostapd | 2.6-r2 | — |
| Alpine v3.16 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.15 | hostapd | 2.6-r2 | — |
| Alpine v3.15 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.14 | hostapd | 2.6-r2 | — |
| Alpine v3.14 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.13 | hostapd | 2.6-r2 | — |
| Alpine v3.13 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.12 | hostapd | 2.6-r2 | — |
| Alpine v3.12 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.11 | hostapd | 2.6-r2 | — |
| Alpine v3.11 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.10 | hostapd | 2.6-r2 | — |
| Alpine v3.10 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.9 | hostapd | 2.6-r2 | — |
| Alpine v3.9 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.8 | hostapd | 2.6-r2 | — |
| Alpine v3.8 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.7 | hostapd | 2.6-r2 | — |
| Alpine v3.7 | wpa_supplicant | 2.6-r7 | — |
| Alpine v3.6 | hostapd | 2.6-r2 | — |
| Alpine v3.6 | wpa_supplicant | 2.6-r4 | — |
| Alpine v3.5 | hostapd | 2.6-r1 | — |
| Alpine v3.5 | wpa_supplicant | 2.6-r2 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | wpa_supplicant | 1:2.6-5.el7_4.1 | ELSA-2017-2907 |
Advisories 24
- WID-SEC-2026-4000 Google Android: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 15, 2026
- RHSA-2017:2907 Red Hat Security Advisory: wpa_supplicant security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2017:2911 Red Hat Security Advisory: wpa_supplicant security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-3999-1 wpa - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1573-1 firmware-nonfree - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1150-1 wpa - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3455-1 wpa vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2022:1853-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10846-1 hostapd-2.9-6.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11515-1 wpa_supplicant-2.9-13.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2752-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3424-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2745-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:2053-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3380-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:2059-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Feb 4, 2026
- VDE-2021-010 Endress+Hauser: products utilizing WPA2 vulnerable to KRACK attacks CERT@VDE · May 14, 2025
- VDE-2017-003 PHOENIX CONTACT: WLAN enabled devices utilising WPA2 encryption CERT@VDE · May 14, 2025
- WID-SEC-2025-0369 IEEE WPA2: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 16, 2025
- WID-SEC-2025-0370 Apple Mac OS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 13, 2025
- ICSA-17-318-01 ICSA-17-318-01_Siemens SCALANCE, SIMATIC, RUGGEDCOM, and SINAMICS Products (Update F) CISA ICS & IT advisories · Apr 9, 2019
- VDE-2019-005 Endress+Hauser: WIFI enabled products utilising WPA2 CERT@VDE · Mar 19, 2019
- VDE-2017-005 Pepperl+Fuchs / ecom instruments: WLAN enabled products utilizing WPA2 encryption CERT@VDE · Oct 23, 2018
- ELSA-2017-2907 Important: wpa_supplicant security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 17, 2017
References
- 1039581 vdb-entry
- https://support.apple.com/HT208221
- 101274 vdb-entry
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- SUSE-SU-2017:2745 vendor-advisory
- DSA-3999 vendor-advisory
- 1039578 vdb-entry
- https://access.redhat.com/security/vulnerabilities/kracks
- 20171016 Multiple Vulnerabilities in Wi-Fi Protected Access and Wi-Fi Protected Access II vendor-advisory
- RHSA-2017:2911 vendor-advisory
- https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-007.txt
- 1039577 vdb-entry
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03792en_us
- openSUSE-SU-2017:2755 vendor-advisory
- https://support.apple.com/HT208222
- https://source.android.com/security/bulletin/2017-11-01
- GLSA-201711-03 vendor-advisory
- RHSA-2017:2907 vendor-advisory
- https://support.lenovo.com/us/en/product_security/LEN-17420
- FreeBSD-SA-17:07 vendor-advisory
- https://www.krackattacks.com/
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- 1039573 vdb-entry
- SUSE-SU-2017:2752 vendor-advisory
- 1039576 vdb-entry
- https://cert.vde.com/en-us/advisories/vde-2017-003
- 1039585 vdb-entry
- VU#228519 third-party-advisory
- https://support.apple.com/HT208220
- https://support.apple.com/HT208219
- [debian-lts-announce] 20181113 [SECURITY] [DLA 1573-1] firmware-nonfree security update mailing-list
- https://cert-portal.siemens.com/productcert/pdf/ssa-901333.pdf
- https://cert.vde.com/en-us/advisories/vde-2017-005
- USN-3455-1 vendor-advisory