CVE-2016-5342

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-08-30 · updated 2026-06-17
Weakness: CWE-787

Description

Heap-based buffer overflow in the wcnss_wlan_write function in drivers/net/wireless/wcnss/wcnss_wlan.c in the wcnss_wlan device driver for the Linux kernel 3.x, as used in Qualcomm Innovation Center (QuIC) Android contributions for MSM devices and other products, allows attackers to cause a denial of service or possibly have unspecified other impact by writing to /dev/wcnss_wlan with an unexpected amount of data.

Affected products

Android: through 7.0
Linux kernel: from 3.0 through 3.19.8

References

http://source.android.com/security/bulletin/2016-10-01.html
http://www.securityfocus.com/bid/92693
https://source.codeaurora.org/quic/la/kernel/msm-3.18/commit/?id=579e796cb089324c55e0e689a180575ba81b23d9
https://www.codeaurora.org/buffer-overflow-vulnerability-wcnsswlanwrite-cve-2016-5342
http://source.android.com/security/bulletin/2016-10-01.html
http://www.securityfocus.com/bid/92693
https://source.codeaurora.org/quic/la/kernel/msm-3.18/commit/?id=579e796cb089324c55e0e689a180575ba81b23d9
https://www.codeaurora.org/buffer-overflow-vulnerability-wcnsswlanwrite-cve-2016-5342

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