The Galaxy Online 2 (aka air.com.igg.galaxyAPhone) application 1.2.3 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The Mahjong Galaxy Space Lite (aka air.com.permadi.mahjongIris) application 2.5 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The kernel in Samsung Galaxy S2, Galaxy Note 2, MEIZU MX, and possibly other Android devices, when running an Exynos 4210 or 4412 processor, uses weak permissions (0666) for /dev/exynos-mem, which allows attackers to read or write arbitrary physical memory and gain privileges via a crafted application, as demonstrated by ExynosAbuse.

The Samsung and HTC onTouchEvent method implementation for Android on the T-Mobile myTouch 3G Slide, HTC Merge, Sprint EVO Shift 4G, HTC ChaCha, AT&T Status, HTC Desire Z, T-Mobile G2, T-Mobile myTouch 4G Slide, and Samsung Galaxy S stores touch coordinates in the dmesg buffer, which allows remote attackers to obtain sensitive information via a crafted application, as demonstrated by PIN numbers, telephone numbers, and text messages.

Autogalaxy stores usernames and passwords in cleartext in cookies, which makes it easier for remote attackers to obtain authentication information and gain unauthorized access via sniffing or a cross-site scripting attack.