Buffer overflow in Marvell 88w8787
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 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.
Vulnerability class: Buffer Overflow
EPSS: 0.066 (93.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Press/Media Coverage)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (US Government Resource, x_refsource_CERT-VN, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2019-6496?
- CVE-2019-6496 is a high-severity vulnerability in Marvell 88w8787, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2019-01-20.
- How severe is CVE-2019-6496?
- High severity. CVSS v3 base score is 8.8 out of 10.