Is CVE-2013-4787 in the CISA KEV catalog?

No. CVE-2013-4787 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-4787?

CVE-2013-4787 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2013-4787?

CVE-2013-4787 has an EPSS score of 62.40% (99th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2013-4787

HIGHEPSS 99th pctl

9.3

CVSS v2

NVD

Description

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.

CWE-310

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

62.40%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.