CVE-2019-6496 — The ThreadX-based firmware on Marvell Avastar Wi-Fi devices, models 88W8787, 88W
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
Published
2019-01-19T17:00:00.000Z
Last modified
2024-08-04T20:23:21.334Z
01What is this vulnerability?
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…
02Affected products
| Vendor | Product | Versions |
|---|
| n | a / n/a | n/a |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2019-01-19T17:00:00.000Z
- Last modified: 2024-08-04T20:23:21.334Z
09References
- www.scribd.com — https://www.scribd.com/document/398350818/WiFi-CVE-2019-6496-Marvell-s-Statement
- www.securityfocus.com — http://www.securityfocus.com/bid/106865
- 2018.zeronights.ru — https://2018.zeronights.ru/wp-content/uploads/materials/19-Researching-Marvell-A…
- embedi.org — https://embedi.org/blog/remotely-compromise-devices-by-using-bugs-in-marvell-ava…
- www.zdnet.com — https://www.zdnet.com/article/wifi-firmware-bug-affects-laptops-smartphones-rout…
- www.synology.com — https://www.synology.com/security/advisory/Synology_SA_19_07
- www.kb.cert.org — https://www.kb.cert.org/vuls/id/730261/
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