CVE-2015-1538

HIGHCVSS v2 · 10.010.0—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 10.0 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:C/I:C/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 99.1% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
Weaponized
10.0EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 99%
  • Public exploit code is available (Exploit-DB (verified), epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 99%CVSS v2: 10.0Exploit: Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Integer overflow in the SampleTable::setSampleToChunkParams function in SampleTable.cpp in libstagefright in Android before 5.1.1 LMY48I allows remote attackers to execute arbitrary code via crafted atoms in MP4 data that trigger an unchecked multiplication, aka internal bug 20139950, a related issue to CVE-2015-4496.

CVSS v2.0 (legacy)
10.0HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
10.0(low)
EG Risk
89(Track)
EG Risk 89/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity100% × 45%
Exploitation99% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
99%
EPSS %ILE
100%
KEV
Not listed

Published

October 1, 2015

Last Modified

May 6, 2026

References (16)

Data Freshness Timeline

(refreshed 3× in last 7d / 4375× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 4,406 total refreshes for this CVE.

  1. 2026-08-19 16:59 UTCEPSS rescore
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Publicly available exploits

(4 references)

Working exploit code is in the public domain (3 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCTharana/vulnerability-exploitation
    First seen May 12, 2020

    Local Root vulnerability- CVE-2019-13272 / Security Bypass Vulnerability – CVE-2019-14287/Google Android - 'Stagefright' Remote Code Execution - CVE-2015-1538

    Open source ↗
  • GitHub PoCjduck/cve-2015-1538-1
    First seen Sep 10, 2015

    An exploit for CVE-2015-1538-1 - Google Stagefright ‘stsc’ MP4 Atom Integer Overflow Remote Code Execution

    Open source ↗
  • Exploit-DBEDB-38124✓ verified
    First seen Sep 9, 2015

    Google Android - 'Stagefright' Remote Code Execution

    Open source ↗
  • GitHub PoCoguzhantopgul/cve-2015-1538-1
    First seen Sep 9, 2015

    An exploit for CVE-2015-1538-1 - Google Stagefright ‘stsc’ MP4 Atom Integer Overflow Remote Code Execution

    Open source ↗

Frequently asked(4)

What is CVE-2015-1538?
CVE-2015-1538 is a high vulnerability published on October 1, 2015. Integer overflow in the SampleTable::setSampleToChunkParams function in SampleTable.cpp in libstagefright in Android before 5.1.1 LMY48I allows remote attackers to execute arbitrary code via crafted atoms in MP4 data that trigger an unchecked multiplication, aka internal bug 20139950, a related…
When was CVE-2015-1538 disclosed?
CVE-2015-1538 was first published in the National Vulnerability Database on October 1, 2015, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-1538 actively exploited?
CVE-2015-1538 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99% probability of exploitation in the next 30 days, which ranks it in the top 0.1% of all scored CVEs.
How do I remediate CVE-2015-1538?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-1538, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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