CVE-2015-3863

Multiple integer overflows in the Blob class in keystore/keystore.cpp in Keystore in Android...

9.3 High

Multiple integer overflows in the Blob class in keystore/keystore.cpp in Keystore in Android before 5.1.1 LMY48M allow attackers to execute arbitrary code and read arbitrary Keystore keys via an application that uses a crafted blob in an insert operation, aka internal bug 22802399.

Exploit likelihood

1.28%Down 1.4 points since Feb 4, 2022

What each source reports

NVD Score used 9.3

Record: CVE-2015-3863
CVSS 2.0: 9.3 HighAV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness: CWE-189
Updated: 2026-11-02

CVE List No score

Record: CVE-2015-3863
Updated: 2026-11-02

EUVDEUVD-2015-3899 No score

Record: EUVD-2015-3899
Updated: 2026-11-03

GitHub AdvisoriesGHSA-f62v-cfqq-x49m No score

Multiple integer overflows in the Blob class in keystore/keystore.cpp in Keystore in Android...

Record: GHSA-f62v-cfqq-x49m
Updated: 2026-11-02

OSVUBUNTU-CVE-2015-3863 No score

Record: UBUNTU-CVE-2015-3863
Updated: 2026-11-02

Affected products

google android

Affected packages

Affected packages
Package	Affected	Fixed
`android` Ubuntu:16.04:LTS	All versions, plus listed versions 20150818-1500-0ubuntu220150818-1500-0ubuntu320160307-0742-0ubuntu320160330-0939-0ubuntu1	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-3863 is a high vulnerability (CVSS 9.3) in Google Android, published October 1, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.28%, the 70th percentile. No source names a fixed version.