How severe is CVE-2015-3864?

CVE-2015-3864 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2015-3864 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 87% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-3864?

CVE-2015-3864 affects Google Android. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-3864?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2015-3864 published?

CVE-2015-3864 was published on 2015-10-01 and last updated on 2026-06-17.

CVE-2015-3864

CVE-2015-3864 is a critical-severity vulnerability in Google Android with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 87% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-189.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 87% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Google Android
Published: 2015-10-01
Last modified: 2026-06-17

Description

Integer underflow in the MPEG4Extractor::parseChunk function in MPEG4Extractor.cpp in libstagefright in mediaserver in Android before 5.1.1 LMY48M allows remote attackers to execute arbitrary code via crafted MPEG-4 data, aka internal bug 23034759. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-3824.

Frequently asked questions

What is CVE-2015-3864?: Integer underflow in the MPEG4Extractor::parseChunk function in MPEG4Extractor.cpp in libstagefright in mediaserver in Android before 5.1.1 LMY48M allows remote attackers to execute arbitrary code via crafted MPEG-4 data, aka internal bug 23034759. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-3824.
How severe is CVE-2015-3864?: CVE-2015-3864 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2015-3864 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 87% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-3864?: CVE-2015-3864 affects Google Android. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-3864?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2015-3864 published?: CVE-2015-3864 was published on 2015-10-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:google:android:*:*:*:*:*:*:*:*

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