Description
The ThreadX-based firmware on Marvell Avastar Wi-Fi devices, models 88W8787, 88W8797, 88W8801, 88W8897, and 88W8997, allows remote attackers to execute arbitrary code or cause a denial of service (block pool overflow) via malformed Wi-Fi packets during identification of available Wi-Fi networks. Exploitation of the Wi-Fi device can lead to exploitation of the host application processor in some cases, but this depends on several factors including host OS hardening and the availability of DMA.
Metrics
CVSS 3.0 8.8/10
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://www.securityfocus.com/bid/106865Third Party Advisory, VDB Entry
- https://2018.zeronights.ru/wp-content/uploads/materials/19-Researching-Marvell-Avastar-Wi-Fi.pdfExploit, Third Party Advisory
- https://embedi.org/blog/remotely-compromise-devices-by-using-bugs-in-marvell-avastar-wi-fi-from-zero-knowledge-to-zero-click-rce/Third Party Advisory
- https://www.kb.cert.org/vuls/id/730261/Third Party Advisory, US Government Resource
- https://www.scribd.com/document/398350818/WiFi-CVE-2019-6496-Marvell-s-StatementThird Party Advisory
- https://www.synology.com/security/advisory/Synology_SA_19_07Third Party Advisory
- https://www.zdnet.com/article/wifi-firmware-bug-affects-laptops-smartphones-routers-gaming-devices/Exploit, Press/Media Coverage, Third Party Advisory
- http://www.securityfocus.com/bid/106865Third Party Advisory, VDB Entry
- https://2018.zeronights.ru/wp-content/uploads/materials/19-Researching-Marvell-Avastar-Wi-Fi.pdfExploit, Third Party Advisory
- https://embedi.org/blog/remotely-compromise-devices-by-using-bugs-in-marvell-avastar-wi-fi-from-zero-knowledge-to-zero-click-rce/Third Party Advisory
- https://www.kb.cert.org/vuls/id/730261/Third Party Advisory, US Government Resource
- https://www.scribd.com/document/398350818/WiFi-CVE-2019-6496-Marvell-s-StatementThird Party Advisory
- https://www.synology.com/security/advisory/Synology_SA_19_07Third Party Advisory
- https://www.zdnet.com/article/wifi-firmware-bug-affects-laptops-smartphones-routers-gaming-devices/Exploit, Press/Media Coverage, Third Party Advisory
Timeline
- Published
- Jan 20, 2019
- Last modified
- Jun 17, 2026
- NVD status
- Modified