CVE-2019-6496
moderate-risk
Published 2019-01-20
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.
Do I need to act?
~
3.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10
High
ADJACENT_NETWORK
/ LOW complexity
Affected Products (5)
88W8787 Firmware
88W8797 Firmware
88W8801 Firmware
88W8897 Firmware
88W8997 Firmware
Affected Vendors
References (14)
Third Party Advisory
http://www.securityfocus.com/bid/106865
Third Party Advisory
https://embedi.org/blog/remotely-compromise-devices-by-using-bugs-in-marvell-ava...
Third Party Advisory
https://www.kb.cert.org/vuls/id/730261/
Third Party Advisory
https://www.scribd.com/document/398350818/WiFi-CVE-2019-6496-Marvell-s-Statement
Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_19_07
Third Party Advisory
http://www.securityfocus.com/bid/106865
Third Party Advisory
https://embedi.org/blog/remotely-compromise-devices-by-using-bugs-in-marvell-ava...
Third Party Advisory
https://www.kb.cert.org/vuls/id/730261/
Third Party Advisory
https://www.scribd.com/document/398350818/WiFi-CVE-2019-6496-Marvell-s-Statement
Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_19_07
45
/ 100
moderate-risk
Severity
27/34 · High
Exploitability
6/34 · Minimal
Exposure
12/34 · Low