CVE-2016-2837

Status: ModifiedMedium (6.3)—
Heap-based buffer overflow in the ClearKey Content Decryption Module (CDM) in the Encrypted Media Extensions (EME) API in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 might allow remote attackers to execute arbitrary code by providing a malformed video and leveraging a Gecko Media Plugin (GMP) sandbox bypass.
CVSS

Version: 3.0
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Base score: 6.3
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 4.58%
Percentile among all scored CVEs: 91
Score date: 10/11/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (2)

Mozilla — Firefox Oracle — Linux
CWEs

CWE-119
References

Raw JSON (NVD)

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  "lastModified": "2026-06-17T00:44:33.693",
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