CVE-2013-4787
CVSS Score Not Available
52.60%
MEDIUM RiskEPSS (98th percentile)
Android 1.6 Donut through 4.2 Jelly Bean does not properly check cryptographic signatures for applications, which allows attackers to execute arbitrary code via an application package file (APK) that is modified in a way that does not violate the cryptographic signature, probably involving multiple entries in a Zip file with the same name in which one entry is validated but the other entry is installed, aka Android security bug 8219321 and the "Master Key" vulnerability.
Published: 7/9/2013
Modified: 4/11/2025
Vulnerability Summary
EPSS Score (Exploitation Probability)
52.60%MEDIUM Exploitation Risk
98th percentile
This vulnerability has a 52.60% probability of being exploited in the next 30 days, ranking higher than 98% of all scored CVEs.