CVE-2015-4506

Status: ModifiedMedium (6.8)—
Buffer overflow in the vp9_init_context_buffers function in libvpx, as used in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3, allows remote attackers to execute arbitrary code via a crafted VP9 file.
CVSS

Version: 2.0
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Base score: 6.8
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 4.92%
Percentile among all scored CVEs: 92
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 (1)

Mozilla — Firefox
CWEs

CWE-119
References

Raw JSON (NVD)

Show
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  "published": "2015-09-24T04:59:09.303",
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  "lastModified": "2026-06-17T00:27:25.760",
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