Description
An issue was discovered on Broadcom Wi-Fi client devices. Specifically timed and handcrafted traffic can cause internal errors (related to state transitions) in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic, a different vulnerability than CVE-2019-9500, CVE-2019-9501, CVE-2019-9502, and CVE-2019-9503.
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.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | kernel-firmware | 20200107-3.23.1 | SUSE-SU-2021:4201-1 |
| SLES 15 SP1 | kernel-docs +5 | 4.12.14-197.105.1 | SUSE-SU-2022:0366-1 |
| SLES 15 | kernel-docs +6 | 4.12.14-150.83.1 | SUSE-SU-2022:0367-1 |
| SLES 12 SP5 | bcm43xx-firmware | 20180314-4.6.1 | SUSE-SU-2021:4003-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.85.1 | SUSE-SU-2022:0080-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.106.1 | SUSE-SU-2022:0068-1 |
| SLES 12 SP5 | kernel-firmware | 20190618-5.17.1 | SUSE-SU-2021:4200-1 |
| SLES 12 SP4 | bcm43xx-firmware | 20180314-4.6.1 | SUSE-SU-2021:4003-1 |
| SLES 12 SP4 | kernel-syms +2 | 4.12.14-95.88.1 | SUSE-SU-2022:0371-1 |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP1 | kernel-docs +4 | 4.12.14-197.105.1 | SUSE-SU-2022:0366-1 |
| SLES for SAP 15 | kernel-docs +5 | 4.12.14-150.83.1 | SUSE-SU-2022:0367-1 |
| SLES for SAP 12 SP5 | bcm43xx-firmware | 20180314-4.6.1 | SUSE-SU-2021:4003-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.85.1 | SUSE-SU-2022:0080-1 |
| SLES for SAP 12 SP5 | kernel-firmware | 20190618-5.17.1 | SUSE-SU-2021:4200-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.106.1 | SUSE-SU-2022:0068-1 |
| SLES for SAP 12 SP4 | kernel-syms +2 | 4.12.14-95.88.1 | SUSE-SU-2022:0371-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.73.1 | SUSE-SU-2022:0090-1 |
| SLE Micro 5.0 | kernel-firmware | 20200107-3.23.1 | SUSE-SU-2021:4201-1 |
| SLE Live Patching 15 SP1 | kernel-default | 4.12.14-197.105.1 | SUSE-SU-2022:0366-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_28 | 1-3.3.1 | SUSE-SU-2022:0366-1 |
| SLE Live Patching 15 | kernel-default | 4.12.14-150.83.1 | SUSE-SU-2022:0367-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_27 | 1-1.5.1 | SUSE-SU-2022:0367-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.106.1 | SUSE-SU-2022:0068-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_27 | 1-8.3.1 | SUSE-SU-2022:0068-1 |
| SLE Live Patching 12 SP4 | kernel-default | 4.12.14-95.88.1 | SUSE-SU-2022:0371-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_24 | 1-6.5.1 | SUSE-SU-2022:0371-1 |
| SLE HPC 15 SP1 | kernel-docs +4 | 4.12.14-197.105.1 | SUSE-SU-2022:0366-1 |
| SLE HPC 15 | kernel-docs +5 | 4.12.14-150.83.1 | SUSE-SU-2022:0367-1 |
| SUSE OpenStack Cloud Crowbar 9 | kernel-syms +2 | 4.12.14-95.88.1 | SUSE-SU-2022:0371-1 |
| SUSE OpenStack Cloud 9 | kernel-syms +2 | 4.12.14-95.88.1 | SUSE-SU-2022:0371-1 |
| SUSE Enterprise Storage 6 | kernel-docs +4 | 4.12.14-197.105.1 | SUSE-SU-2022:0366-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | kernel-debug +4 | 4.12.14-197.105.1 | openSUSE-SU-2022:0366-1 |
| openSUSE Leap 15.2 | kernel-firmware | 20200107-lp152.2.9.1 | openSUSE-SU-2021:1648-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Broadcom Wi-Fi Devices - 'KR00K Information Disclosure EDB-48233 · remote · Mar 18, 2020
GitHub 3 repositories
-
hexway/r00kie-kr00kie ★ 224 · Mar 13, 2020
PoC exploit for the CVE-2019-15126 kr00k vulnerability
-
akabe1/kr00ker ★ 66 · Mar 18, 2020
An experimental script PoC for Kr00k vulnerability (CVE-2019-15126)
-
0x13enny/kr00k ★ 12 · Mar 9, 2020
PoC of CVE-2019-15126 kr00k vulnerability
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 13
- SUSE-SU-2022:0090-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:4003-1 Security update for bcm43xx-firmware SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0080-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0366-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:4201-1 Security update for kernel-firmware SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:1648-1 Security update for kernel-firmware SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0367-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0371-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0068-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- VDE-2020-014 Pepperl+Fuchs: Kr00k vulnerabilities in Broadcom Wi-Fi chipsets CERT@VDE · May 14, 2025
- SUSE-SU-2021:4200-1 Security update for kernel-firmware SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2022:0366-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ICSA-20-224-05 Siemens SIMATIC, SIMOTICS (Update A) CISA ICS & IT advisories · Dec 8, 2020
References
- https://support.apple.com/kb/HT210721
- https://support.apple.com/kb/HT210722
- https://support.apple.com/kb/HT210788
- 20200227 Wi-Fi Protected Network and Wi-Fi Protected Network 2 Information Disclosure Vulnerability vendor-advisory
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0001
- http://www.huawei.com/en/psirt/security-notices/huawei-sn-20200228-01-kr00k-en
- https://www.mist.com/documentation/mist-security-advisory-kr00k-attack-faq/
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-003.txt
- https://www.synology.com/security/advisory/Synology_SA_20_03
- http://packetstormsecurity.com/files/156809/Broadcom-Wi-Fi-KR00K-Proof-Of-Concept.html
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200527-01-wifi-en
- https://cert-portal.siemens.com/productcert/pdf/ssa-712518.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-20-224-05