CVE-2019-6496
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.62%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 6.62% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- marvell/88w8787 firmware · marvell/88w8797 firmware · marvell/88w8801 firmware · marvell/88w8897 firmware · marvell/88w8997 firmware
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.